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Maritime Geocaching Association
Please note: The island is almost completely private property. Please respect that on your visit. Do not cut across lawns or people's house lots or fields on your visit; stay on the roads, follow the shoreline and beaches, and usually there are old hunting paths just inside the edge of the woods when the shoreline turns into cliffs that meet the forest edge. These caches are present on the condition of respect from visiting cachers. Thankyou. 
The Sou'West Rock is a large cliff connected to the island by a land bridge during low tide. DO NOT ATTEMPT THIS CACHE UNLESS YOU ARE FAMILIAR WITH HIKING ALONG THE COAST! There are places on route to the cache where overhang may exist. There are also places where you'll need to cut through the edge of the woods to avoid spots where the path has eroded away or the cliff cuts in. Use your own discretion and be careful. The route isn't dangerous if you know what you're doing.
The cache is a tobacco container located near the exit from the woods path to the cliff descent to the Sou'West Rock.
Terrain is at 5 since you need a boat to reach the island. Once there, the terrain is about a 3 for this cache.