Whats this sign mean(Tree Carving)?

[TreasureCrazy]

I would like some opinions on this sign. Its a one masted sailing vessel with what resembles a anchor or arrow that kinda circles around. Plus a pair of turkey tracks.

 

[lookstwice]

is that a sycamore tree?

 

[Cladius]

Looks like a shovel. Could be dig here?

 

[TreasureCrazy]

Its a old growth mangrove tree. And directly under the side of the tree with the sign is water which is not visible in the picture.

 

[lamar]

I dunno, it looks sort of like a toilet with the lid opened. Could it mean "Relieve yourself here"?