We went to Columbia Harbour House last week specifically for the tuna sandwich and were disappointed to not find it on the menu. We turned around and went to Peco's Bills instead.
This is true! SO GOOD! There is a really beautiful place to sit outside by the water in front of Geyser Point. It's a really great place for a break. We've taken the boat over from the Magic Kingdom for a lunch break there a couple times and will do it again. The boat ride itself is very pretty and relaxing.