Based on the recommendations I read on Cruise Critic, I purchased disposable shoe covers for our trip. We will be visiting three locations with lots and lots of penguins so there is bound to be lots and lots of guano. Disposable shoe covers seem like the most practical way to deal with this.
Yup, Brimley is very, very happy to hear about this. He is planning to send this to his vet to inform her that he is quitting his diet effective immediately.