Travel Tips

A little preparation goes a long way. On this page we've pulled together the questions UK travellers ask most before a Southeast Asia adventure – visas and entry, the best time to travel, what to pack, food, temple etiquette and a few local words. For the day-to-day essentials – money, staying connected, luggage, safety, tipping and health – see our Practical Information page.

Get these sorted a few weeks before you fly and you'll arrive relaxed and ready to enjoy every moment.

Entry rules differ by country, and several now use an online arrival card, so check the latest at gov.uk/foreign-travel-advice and complete anything required before you fly. As a general guide for British citizens:

• Vietnam – visa-free for up to 45 days; for longer stays a 90-day e-visa is available online.
• Thailand – visa-free for up to 60 days; you must complete the Thailand Digital Arrival Card (TDAC) online within 3 days before arrival.
• Cambodia – a visa is required (30 days), easiest as an e-visa online (or visa on arrival), plus an e-Arrival card before you land.
• Malaysia – visa-free for up to 90 days; complete the Malaysia Digital Arrival Card (MDAC) online before travel.

Passports should be valid for at least 6 months beyond arrival. Use only the official government websites for visas and arrival cards.

Southeast Asia is a year-round destination, but the timing of the monsoons matters.

• Vietnam stretches over 1,000 miles, so the weather varies north to south; broadly, spring (Feb–Apr) and autumn (Aug–Oct) suit a full country tour.
• Thailand and Cambodia are at their best in the cool, dry season from November to February, before the heat of March–May.
• Malaysia is warm and humid year-round, with rain possible any time; the west coast is driest from December to February.

Broadly, November to March is the classic window for the mainland. We're happy to advise on the best timing for your chosen route.

Think light, breathable clothing for the heat and humidity, with a few modest options – lightweight trousers and tops that cover shoulders and knees for temples. A light scarf or sarong is endlessly useful for covering up at religious sites, and a light rain jacket is worth having whatever the season.

Useful things to pack: comfortable slip-on shoes and sandals (you'll remove shoes often), a sun hat, sunglasses, high-factor and reef-safe sun cream, insect repellent with DEET, a reusable water bottle, a power bank and a universal adapter. A light layer is handy for chilly air-conditioning and cool highland evenings. Most hotels offer laundry, so pack light.

Southeast Asian food is a highlight in itself – Vietnamese pho and fresh spring rolls, Thai curries and pad thai, Cambodian amok, and Malaysia's wonderful mix of Malay, Chinese and Indian flavours. Street food is a joy and often the best eating – your guide will point you to the busy, freshly cooked stalls.

Dietary requirements – vegetarian, vegan, allergies – can be catered for, especially with notice; do mention nut and shellfish allergies clearly, as both are common in the cuisine. Please tell us when you book. To keep your stomach happy, favour freshly cooked hot dishes, drink bottled or filtered water, ease into the chilli, and enjoy exploring the flavours.

A little cultural awareness goes a long way and is warmly appreciated in this predominantly Buddhist and Muslim region.

• Remove your shoes before entering temples and homes, and dress modestly at religious sites (cover shoulders and knees).
• The head is considered sacred – don't touch people's heads – and the feet are lowly, so don't point your feet at people or Buddha images, or step over someone.
• Keep public displays of affection low-key, and stay calm and smiling – losing your temper causes loss of face.
• In Thailand, never disrespect the monarchy or Buddha images – it's taken very seriously (and is against the law).
• A gentle 'wai' (palms together) in Thailand, or a friendly greeting elsewhere, always goes down well. Always ask before photographing people or monks.

English is spoken in hotels and at many tourist sites, but less so in markets and the countryside, so a few local words are always warmly received – and a translation app is handy.

A few 'hello / thank you' to try:

• Vietnamese: xin chào / cảm ơn
• Thai: sawasdee (khrap/kha) / khop khun (khrap/kha)
• Khmer (Cambodia): suosdey / arkoun
• Malay: selamat / terima kasih

In Thai and Khmer, adding a polite particle (khrap if you're male, kha if female, in Thai) softens what you say. Your guide is the best person to teach you a few more as you go.

A few simple habits keep you feeling good in the tropical heat. Drink plenty of bottled or filtered water to stay hydrated, favour freshly cooked hot food, and ease into the chilli – mild stomach upsets are common but usually short-lived, so pack rehydration sachets and any personal medication in your hand luggage.

The heat and humidity can be tiring, so wear a hat, reapply sun cream and take it steady in the middle of the day. Watch out for scooters when crossing roads, and use reef-safe sun cream and care around coral when snorkelling. Make sure your travel insurance covers medical care and evacuation, and pace yourself so you enjoy every temple, market and beach.

Unforgettable moments

Some experiences reward a little planning: sunrise over the temples of Angkor, a dawn cruise through the karst islands of Ha Long Bay, the buzz of a night market, and quiet moments in ancient temples before the crowds arrive. Your guide will help you time each one well – ask questions, and don't try to cram in too much. Southeast Asia rewards those who slow down and savour it.

Photography tips

The region is wonderfully photogenic, and the light is loveliest early and late in the day. Carry a power bank and spare memory, protect your gear from tropical humidity and dust, and always ask before photographing people or monks. And remember to put the camera down now and then – some moments are best simply enjoyed.