Thai Island and Sea Natural History Museum

If you've had enough of beach chairs and bar strips, this is the closest thing Pattaya's coastline has to a serious science outing. It's a natural history museum built around Thailand's islands and seas, split across several pavilions covering marine life, local plants and land animals. The marine section is the one most people come for, with displays on what actually lives out in the Gulf of Thailand just beyond the shore.

It's a calm, orderly place rather than a flashy one. The exhibit areas are clearly separated, so you can wander at your own pace without being herded, and there's a cafe on site if you need a sit-down between pavilions. Families with kids, school-age visitors and anyone with an interest in ecology and conservation will get the most out of it. If you want interactive theme-park spectacle, this isn't that, and I'd skip it if your group has no patience for reading panels.