Raymond Island is located in the Gippsland Lakes, separated from the mainland at Paynesville by the narrow McMillan Strait. The low island is 6.4 km long and 1.9 km across at its widest point. Much of the island is still covered by natural woodland, with some wetlands at the northern end.
Abundant game and swans’ eggs brought Aboriginal hunters to the island. Relics of their visits have been found, including a canoe tree.