[Written by Stephen Wright] Thirteen members of the Bermuda Sub Aqua Club spent more than three hours underwater crossing the Great Sound during the Convex End-to-End last weekend, completing a 2.6-kilometres scuba dive from Spanish Point Boat Club to Dockyard. While participants in the End-to-End tackled the traditional 24.1-mile End-to-End route, the 14-mile Middle-to-End or …