We went around the town again, did some shopping in the financial district, and stocked up on supplies for the San Blas trip.  See here for tips on the San Blas regarding what to take and which boat to pick, etc.  Apart from strolling around the high street for hours, getting lost trying to find a Bureau de Change, it was a fairly uneventful day...until we got back to the hotel, to be informed that the boat we had the Galapagos liveaboard trip booked with was cancelled.  I was almost in tears. We spent hours emailing and trying to get onto another boat, which resulted in a few stressful couple spats to rescue our trip.  We won't know if our efforts have been worth it until we get to Colombia and get the internet again.