The sea in Unawatuna is a perfect place to go on snorkeling. Once you go for Unawatuna snorkeling under the sea, you can check the beautiful world underwater and many species of tropical fish and colorful coral reefs. If we go a little bit far from the island, one can check the mysterious shipwrecks lying beneath the sea. There are lots of colorful varieties of coral reefs under the sea near Unawatuna.