Though an urban and historic center, Galle is surrounded by rich biodiversity and accessible natural sanctuaries.
- **Rumassala Sanctuary:** A mythical hill (associated with the Ramayana epic) offering a forested retreat, endemic wildlife, and panoramic ocean views. - **Hiyare Reservoir Rain Forest:** Located slightly inland, this is a serene secondary lowland rainforest and reservoir, excellent for birdwatching and spotting endemic flora. - **Kanneliya Forest Reserve:** While a bit further into the Galle District, it is a spectacular, biologically diverse rainforest complex that functions as a major natural attraction for ecotourism.