Sea (Tasi) ← Back to Categories Coral reefs: essential ecosystems on Guam Guam’s Balate’ Sharks, Rays, Whales and Dolphins of Guam Tuninos: Dolphins and Their Cousins in Guam Waters Bayena: Whales in Guam Waters Hafula’ yan Halu’u: Rays and Sharks in Guam Waters Tourism’s Effect on Guam Reefs Coral Reefs in Apra Harbor Mangroves: The Forest Between Land and Sea Hima: Conserving a Cultural Heritage 1 2 Next