For this map there are a couple of entrances in the water part that can only be accessed by water in a boat or boat, at the top there is a side-to-side path to which you can also access a cave.
This is the way to access land from the sea or vice versa, to the sea from land, inside the cave there is a large clear of water where the boats can remain hidden
This map has a 36x36 grid
All variations have a gridded and gridless version.
License: Roll20 End User License Agreement
(Personal Use Only, Do Not Distribute)