Neurotic
I plan on living forever. Or die trying.
If I have to make it there under my own power I suppose the quickest way might be to levitate myself then grab a grappling hook from the ol' utility be- I mean, handy haversack, and pull myself across over the water.
If you can levitate the group, I can pull them across flying - need two rounds to get back and another two to return us. But you could probably rain destruction from afar. The question is, of course, if the defenders can hold for another minute.