Attracting everyone from budget backpackers to ostentatious oligarchs, Koh Samui is one of Thailand’s most popular islands. It’s no surprise, given the truly stunning beaches, but the more developed areas such as Chaweng have lost a lot of their charm, so head for the quieter south and west if you can.

Malaysia’s capital is a hot and humid cultural melting pot, defined by its distinctive Malay, Chinese and Indian communities. The dazzling Petronas Towers are KL’s most recognisable landmark, while at street level you’ll find temples and mosques, elegant colonial buildings and bustling markets.

Indonesia’s capital is noisy, chaotic and choked with some of the worst traffic in Asia, a sprawling megacity that’s home to over 10 million people. If you can get past all of that then Jakarta has plenty to offer, with the country’s best museums and restaurants, an atmospheric old harbour and a rich mix of cultures from all over the Indonesian archipelago.

The sweltering city of Semarang, on the north coast of Java, is an intriguing mish-mash of Chinese, Islamic and Dutch colonial influences. We recommend escaping the heat with a trip up into the mountains to visit a coffee plantation, or joining an excursion to the extraordinary temple complex at Borobudur.

Surabaya, situated on the northeast coast of Java, is Indonesia’s second largest city and the place where the country’s struggle for independence began. The warren-like Arab Quarter is worth exploring, though many visitors use the city as a base for visiting nearby Mount Bromo.