Arrive in Thailand's capital, the lively metropolis of Bangkok. The bustling street life of this energetic city is set to a backdrop of colourful, ornate shrines and modern glass-fronted high-rises, which jostle for position to dominate the city's skyline. It's a place where old meets new at every corner. Sample the fresh and tasty street food, haggle in the non-stop markets and take a cruise out on Chao Phraya River to witness stunning sunsets. For those arriving on time our Leader plans to meet you in the hotel reception at 1pm for the welcome meeting and for those that wish, there is an optional longtail canal trip which cruises along the city's Khlongs to explore the city from Bangkok's network of backwaters that branch off the Chao Phraya River. The excursion will also include visits to Wat Arun, the Royal Barge Museum and the Temple of the Dawn, built to represent the towering slopes of Mount Meru - the Khmer's mythical home of the gods. If you would like an airport transfer today, you'll need to arrive into Suvarnabhumi Airport (BKK), which is one hour from our hotel. Please note that if you wish to join the Optional Longtail Canal Trip today, you must arrive at the hotel by 1pm. If you are booking your own flights, we recommend giving yourself at least one hour to clear the airport. From the airport to the hotel is around one hours' drive, so therefore the latest your flight can arrive is 10am.

This morning we make an early start with a train ride before boarding a scheduled bus service to the Cambodian city of Siem Reap. Operated as a through service, travellers will nevertheless change vehicles once in Cambodia. Your Thai leader will accompany you to the border and you will then meet your Cambodian Tour leader to continue your journey by local bus to Siem Reap.

Today is left free to explore the incredible jungle temple complex of the Angkor period, whose history covers some 600 years, from the 9th through to the 15th centuries. No activities or excursions have been included in Siem Reap and your time here is very much your own, although your tour leader will be more than happy to help organise any visits that you wish. Two of the best ways to explore are by bicycle or striking a deal with one of the many tuk tuks that ply their trade here. Obvious choices are the magnificent complex of Angkor Wat, without doubt one of the most incredible of the jungle sites, the fortified city of Angkor Thom (home to the Bayon, with its mysterious giant faces) and the wonderfully overgrown and atmospheric Ta Prohm, set amidst tangled tree roots and lush jungle and famous as the setting for some of the Lara Croft film Tomb Raider. Other possibilities include taking to the waters of the Roluos River, to visit the floating villages and local wat at Kompong Phluk and explore the flooded forest and great lake of Tonle Sap (the largest freshwater lake in SE Asia, covering nearly a seventh of Cambodia's entire landmass). Those wishing to gain a little understanding of Cambodia's more recent past might like to seek out the fascinating Landmine Museum just to the south of Banteay Srei Temple. Set up in 1997 by a former Khmer Rouge soldier, the museum offers support for countless victims of landmines, as well as providing visitors with a poignant reminder of one of the country's most violent and tragic periods.

Today is left free to explore the incredible jungle temple complex of Angkor.

Today we travel by public bus from Siem Reap onto Battambong, a journey of approximately 3 hours. Battambong lies along a route that has seen countless Thai and the Khmer Rouge soldiers wind their way north and south, either in the pursuit of conquest, or in the case of the Khmer Rouge to escape the invading Vietnamese in 1979. The town is, surprisingly, Cambodia's second largest, a factor that has done little to detract from its laid-back feel, enhanced by a wealth of colonial villas and leafy streets. Depending upon our arrival time there may be an opportunity to explore this afternoon, taking in its traditional temples and French-colonial architecture.

A public bus takes us on to the Cambodian capital this morning, the 6-hour journey getting us to the city in time for an afternoon's orientation tour. Phnom Penh sits at the confluence of the Sap, Mekong and Bassac Rivers, a charming testament to the country's ancient and colonial past, with tree lined boulevards and colonial villas dotted amongst the reminders of its turbulent history. The Cambodian capital since the mid 15th century, Phnom Penh's origins lie in the legend of 4 statues of Buddha, washed on the shores of the Mekong and discovered by a woman named Penh, which were later housed in the 14th century Wat Phnom, located on a small hill at the northern end of the city. On arrival there should be time to freshen up, after which you may join your tour leader on a short walking tour of the city.

Today has been left free for you to continue exploring this fascinating city at your own pace. Options include the National Museum, with its impressive collection of Angkor statues and the impressive French built Royal Palace, whose spectacular pagoda style structure is without doubt one of Phnom Penh's most impressive sights. A replica of King Norodom's old wooden palace, the building presents an ostentatious display of elaborate Khmer architecture, with golden nagas, orange, sapphire and green tiles and scenes from the Ramayana painted on the ceiling. The Tuol Sleng Genocide Museum and the 'Killing Fields' of Choeung Ek provide gruesome testaments to life under the Khmer Rouge and Pol Pot, the skull filled glass tower a vivid memorial to the 17,000 men, women and children who were murdered there between 1975-1978. You should be aware that by their very nature Tuol Sleng and the 'Killing Fields' can be a distressing experience for some people. You might like to take a trip along the Mekong, or perhaps visit some of the capital's numerous markets, such as the old Russian Market of Psar Toul Tom Poung, renowned for its textiles, jewellery and antiques. Of course you may just prefer to wander Phnom Penh's vibrant streets, soaking up the atmosphere and perhaps enjoying a drink in one of the city's old colonial riverfront bars.

Transferring to the bus station this morning, we catch the non-stop public bus to Ho Chi Minh City, an unescorted journey of some 6.5 hours that gets into the city in time to meet up with our Vietnamese tour leader. We cross the border at Bavet (Cambodia) and Moc Bai (Vietnam). Lying to the north of the Mekong Delta, on the banks of the Saigon River and still unofficially referred to as 'Saigon', the city today is the largest in Vietnam, an eclectic mix of the traditional and the new, where pagodas and markets compete alongside the trappings of Vietnam's newly discovered entrepreneurial spirit. Depending upon our arrival time we plan to make a short orientation tour on foot around the city, taking in some of its more obvious highlights, including the prominent Hotel de Ville, whose ornate grandeur is today the home of the city's People's Committee, as well as the Romanesque Notre Dame Cathedral and the impressive French style edifice that is the GPO building (should our arrival time render this option impossible, then we will do the tour tomorrow morning instead).

Today is free for you to choose from a number of options. You may wish to visit the remarkable Reunification Palace and the emotive War Remnants Museum, which contains a fascinating, and at times chilling reminder of the cost of what the Vietnamese refer to as the American War. Or perhaps browse the bustling stalls of the Binh Tay Market, the largest wholesale market in southern Vietnam and a fabulous place to stroll and meet the locals.

This morning we transfer to the airport for our short flight to Danang in Central Vietnam. On arrival in Danang we will continue our journey by charter bus to Hoi An. On our way we pass the popular beach resort of My Khe, better known as China Beach, an area that during the Vietnam War was popular with the American GIs on RnR. Given the early hour of our arrival at the hotel we might not be able to check-in so we plan to store our bags, have breakfast (not included) then embark on a walking tour of Hoi An. First colonized by the Portuguese in the 16th century, by the 17th and 18th centuries Hoi An had become one of the busiest international trading posts in southeast Asia and, even today, it still retains the engaging charm of a medieval port, with many of its old buildings superbly preserved. Highlights include the Phuc Kien Assembly Hall, a pagoda dedicated to the worship of Buddha originally built by the Vietnamese people in the 16th century and the 400 year old Japanese covered bridge. We end at the colourful riverside market, a perfect setting for exploring, the rest of the day is free to enjoy as you wish.

Today is free to wander through the historic heart of this World Heritage Site at your leisure. An early morning visit to the fish market presents a riot of noise and colour that is perfect for some great photo opportunities and some choice local interaction. You might also like to pay a visit to the Japanese Bridge, Hoi An's emblematic symbol, believed to have been constructed to quell the violent rumblings of a restless monster, or perhaps explore the traditional wooden houses and Chinese temples that line the streets. There are numerous tailors shops in Hoi An providing an incredibly cheap and quick service and almost all visitors have at least one item made before they depart. Hoi An is also a great place to hire a bicycle as the roads are relatively quiet. There's a good beach just a few kilometres from the town or alternatively why not set out to explore nearby villages. Cooking classes are yet another option available in this popular travellers hangout.

This morning sees us heading along the coastal road towards the historic setting of Hué, crossing part of the Truong Son Mountains and travelling via the Hai Van (Sea Cloud) Pass. This stunningly scenic region once marked the boundary between Vietnam and the Champa Kingdom to the south and the journey should get us into the old imperial city around lunchtime, after which the rest of the day is free for personal exploration. Once the capital of Vietnam and an inspiration for poets and artists alike for centuries, Hué is divided by the waters of the Perfume River, which separate the city's 19th century citadel from the suburbs that radiate from the eastern shore and, even today, its easy air of leisurely ambience makes it one of the most engaging cities in the country to explore.

With the better part of the day to enjoy the city, Hué offers a wealth of options to make the most of your time here. You could pay a visit to the iconic Thien Mu Pagoda, home to the oldest monastery in the city, whose 21m high tower has become something of a symbol for Hué. Dedicated to the Manushi- Buddha, the existing temple was constructed in the middle years of the 19th century, under the auspices of the Emperor Thieu Tri, and within its confines you can find a number of superb Buddhist statues, as well as an enormous cast bell that weighs in at over 2000kg and is reputed to be audible over 10km away. Another alternative is to spend some time exploring the Old Citadel that dominates the left bank of the Perfumed River. Built by the Nguyen dynasty (Vietnam's ruling emperors from the early 1800s to1945), the Citadel has formal moats and impressive ramparts that were constructed to be an exact copy of the Forbidden City in Beijing. During the bloody conflicts of the Vietnam War, Hué was the site of some of the most destructive fighting of the Tet Offensive, most of the Inner City being totally destroyed during the month-long battle in 1968. The vast outer walls and the West Wing remain though and provide an eloquent reminder of the palace's former glory. Farther afield, amongst the forested landscapes of the Perfume Valley, you can find the Royal Tombs of the Nguyen kings, the unique mausoleums of the emperors that provide an ideal destination to explore by bicycle. Later this afternoon we will then head for the railway station to board the overnight train north to Hanoi, Vietnam's vibrant and historic capital.

Arriving in Hanoi in the early hours of this morning we disembark the train and drive two hours to the Bay of Tonkin on Vietnam's northeast coast. Our destination is the island of Cat Ba, the largest island in the bay and a UNESCO Biosphere site on account of its rich biodiversity and eco system. The island is made up of rolling hills, towering cliffs and has a lush-forested interior which is pocketed with some impressive natural cave systems. After settling into our hotel, we set out to explore Cat Ba's green interior and some of its best caves. We first take a short forested walkway to Trung Trang Cave which extends an impressive 400 metres into the side of one Cat Ba's many limestone cliffs. We next visit Hospital Cave, so-called as it was used as a shelter by the Viet Cong during the Vietnam war and its 17 separate rooms included a working operating theatre and even a cinema. We end our afternoon's exploration atop Cannon Fort, which provides us with glorious views out over the bay.

We wake this morning amongst the breathtaking setting of Lan Ha Bay, a geological extension of stunning Halong Bay but much less visited. The greater Halong Bay area is one Southeast Asia's most spectacular natural attractions, whose staggering beauty has seen it listed as one of the eight natural wonders of the world. It presents a quite extraordinary vista of hundreds of limestone islands (over 1600 at last count) that rise from the jade green waters of the bay like the scales of some great submerged dragon. Indeed Halong means 'where the dragon descends to the sea' and local legends tells of a time when this rugged landscape was created by the pounding tail of a mighty dragon as he ran from the mountains into the glittering waters of the bay below. We will board our junk and set sail, passing the floating village of Cai Beo which has been used as a home for the bay's fishermen for generations. The plan for this morning is to sail through this stunning seascape, stopping off to swim and visit some of the limestone caverns that pepper the landscape. There is also the option to hire a kayak to more closely explore some of the rugged coastline and hidden caves. We disembark from our boat around lunch time and drive back to Hanoi, a journey of around two hours. Returning back to Hanoi your tour leader will then take those that wish on a short orientation tour of the city, wandering the streets of the city's Old Quarter, whose narrow streets are named after the various crafts and specialities of the city's artisans: Paper Street, Silk Street, Basket Street etc. This practice dates back to the 13th century, when the city's original 36 guilds established themselves here, adopting a street each to differentiate them from their neighbours. The maze of alleys and streets present a fascinating venue to explore on foot and the area is known for its interesting 'tube' houses, where the narrow frontages give way to long rooms that stretch back from streets, whose pavements are littered with food sellers tempting passers-by with all manner of noodles, snacks and stir-fried delights from shoulder panniers.

Architecturally styled like a French provincial town, with tree-lined boulevards and substantial low-built houses, Hanoi is a wonderfully nostalgic city to enjoy and amongst its more interesting sights are the charming One-Pillar Pagoda, the Temple of Literature and the Presidential Palace. Ho Chi Minh was a spartan-living and scholarly man, who chose not to live in the Presidential Palace itself, but instead preferred a simple teak 2-storied stilt-house specially built for him in the grounds. You can visit his museum and this austere mausoleum, said to resemble that of Lenin in Moscow, or perhaps taking another walk through the engaging streets of its Old Quarter. The city's French Quarter is a great place to explore by bicycle, its grandiose colonial architecture offering up a rich contrast to the more frenetic pace of the old city, whilst those looking to discover something more of the colonial wars might like to pay a visit to the Museum of Vietnamese Revolution or the Military History Museum.

The trip ends after breakfast at our hotel in Hanoi. There are no activities planned today, so you are free to depart from Hanoi at any time. If your flight is departing later in the day, luggage storage facilities are available at our hotel. If you would like to receive a complimentary airport transfer today, you will need to depart from Noi Bai International Airport (HAN), which is 45 minutes from the hotel. If you have time, you may wish to take another wander through the fascinating Old Quarter or stroll along the shore of Hoan Kiem Lake.