A glass bottom boat ride in Andaman is probably the easiest way to get a peek at the underwater world—no wetsuit, no getting wet, just you and the sea. If you’ve got kids in tow, older folks, or maybe you just want to keep things low-key, this is perfect. The boat’s got a big glass panel on the floor, so you can look straight down and watch the corals and fish glide by, all in real time.

You’ll find these rides at places like North Bay Island, Jolly Buoy, and Red Skin Island. The water’s clear, the coral reefs are right under the surface, and the views are incredible. The boat moves slowly, so you get plenty of time to spot bright coral gardens and schools of tropical fish darting around. Usually, there’s a guide on board who’ll point out different species and share a few fun facts, but it never feels like a classroom—just adds to the trip.