Entering Snow Island

The last thing I need to do before defeating Hercules, is to enter Snow Island.
Somehow I can't get my 'heroes' of the boat. Tried using my keyboard arrows, tried the mouse, the boat just won't unload... Anyone else?
(And yes, already got rid of the 'bubble')

ATE: Never mind, read solution on the other forum, using space-bar worked...

I had this problem too, was about to quit to put in forum when I tried one last thing that worked for me. I hit "enter" and I was on snow island!

I've hit every key and positioned the boat every which way and still can't enter Snow Island.

Did you get rid of the 'bubble' first?