I need the last dark gem in Coastal Remains. I realize that you need to get to the cannon in that part with all the poles and the 2 whirlwinds, my problem is that I CANNOT get to the cannon! Seriously I've been trying for like 2 years. Crossing over all the poles and getting to the area with the strong boxes does no good, it's too far away from the cannon to glide over to it. Same for the bit at the beginning, the one with the Gnorc on it. This is the last dark gem I need before Ineptune and it's been holding me up forever. Any advice would be amazing.