Guam may be a US territory, but—perhaps not surprisingly—your activity options look more like what you’d find on the neighboring islands in Micronesia. Guam tours include snorkeling, stand-up paddleboarding, and even free diving adventures in places known for turtles and colorful fish. There are also riverboat excursions that take you deep into the rainforest to see the remains of ancient villages—keep your eyes peeled for the latte stone pillars the Indigenous Chamorro people once used as the foundations of their homes.
