East Thailand is one of the easiest parts of the country to “mix and match” in a single trip: you can be in Pattaya for big-city energy tonight, on Koh Samet for a quick island reset tomorrow, and in the Trat archipelago (Koh Chang, Koh Mak, Koh Kood) for a more serious beach escape by the weekend. The trick is choosing the right base for your travel style and your tolerance for transfer time, ferries, and late-night noise. Below is a destination-by-destination guide that compares the places travelers actually debate: Pattaya for maximum entertainment and hotel choice, Koh Samet for a short island break, Rayong for mainland beaches, Chanthaburi for culture and coastal road trips, Koh Chang for the broadest island experience, Koh Mak for quiet low-key travel, and Koh Kood for secluded resort stays.
At-a-glance comparison: transfers, ferries, food, nightlife, beaches, hotels
If you want the simplest logistics from Bangkok, Pattaya is the clear winner: it’s a straight shot by road with frequent buses, and you can arrive, check in, and be at the beach or a rooftop bar without thinking about boat schedules. It’s also the place with the widest choice of hotels, from budget guesthouses around Central Pattaya to large international-brand towers near Beach Road and in Jomtien.
Koh Samet is the classic “two- or three-night island break” because the island transfer is short once you reach Ban Phe pier in Rayong. Boats are frequent in daylight hours, and the crossing is quick enough that many travelers plan it like a long day trip, even though staying overnight is where Samet feels most rewarding, especially at sunrise and after the last day-trippers leave.
Rayong and Chanthaburi are the mainland counterpoints. Rayong gives you beaches and seafood without any ferry at all, while Chanthaburi adds heritage streets, cathedral architecture, riverfront cafés, and an excellent base for coastal drives toward Laem Sing, Chao Lao, and the quieter coves that don’t make first-timer itineraries.
Koh Chang, Koh Mak, and Koh Kood require more time and usually a morning start from Bangkok, but each delivers a different version of island life: Koh Chang is the most “complete” island with the broadest mix of beach towns, activities, and dining; Koh Mak is intentionally low-key and good for couples and slow travel; Koh Kood is the most resort-forward and secluded, where many visitors treat their hotel as the destination.