The times that I have used the watertaxi it was a blast, we did watch the weather though and the times that it rained, we flew to and from the municipal airport (which is just a short distance from where you are staying. Use your best judgement, if it looks rough, then fly if you wish. There are luggage compartments, but not enough for everything usually. One time we encountered rain while in transit, I took a garbage bag out of my backpack and covered our stuff. Luckily we had windbreakers or it could have been cold and miserable. Its part of the adventure!