This pagoda is perched on a tiny island in the middle of Nha Trang Bay. Stepping stones lead around the island to various altars, some of which are on rocks overlooking the sea. Stop at the motorbike parking opposite 32 Pham Van Dong and catch a fishing boat across to the island. It should cost around VND50,000 to go there and back.
From Hon Do if you look north east you can see Hon Rua, Tortoise Island, which really does resemble a tortoise.