This cache IS at the posted coordinates, the puzzle begins when you get there. 

You will need tweezers.

Parking waypoint is a gateway on a busy road. It is used by people fishing in the lake nearby (please do not block the entrance). The cache is close to open water so is not suitable for young children. You can, of course, access GZ by boat. Once you have accessed the log, the black line will help you replace the container properly. Please be gentle with it. 

Boa Island

Boa Island is an island near the north shore of Lower Lough Erne in County Fermanagh, Northern Ireland. It is 25 km (16 mi) from Enniskillen town.

It is the largest island in Lough Erne, approximately 8 km (5 mi) long, and relatively narrow. The A47 road goes through the length of the island. This road joins each end of the island to the mainland by bridges leading west toward Castle Caldwell and east toward Kesh.

Boa Island is named after Badhbh, sometimes spelled, Badb, the Celtic goddess of war. Badhbh sometimes took the form of a carrion crow, most notably on the shoulder of the warrior, Cúchulainn, after he died in battle. At other times she is depicted as a wolf.

She is one of a triad of Celtic war goddesses that included her sisters, Macha and Morrigan.

Badb is said to have caused confusion among the enemy in battles, providing victories to her side. This makes the cache container feel right at home.