Crocs and reefs, barefoot for preference.
I always went off barefoot in the Whimp round Malthouse Broad and once it led to an interesting outcome.
Phill accepted an invitation to join me and we pottered about, then decided to sail up the dam, then turned upstream on the Bure, then got to Cockshoot. The chance for a nice walk offered, and at this point my absence of shoes was noted. it was a very enjoyable, if cautious, walk! On balance we decided not to press on to the New Inn for lunch!