The main pool I swim at is a high school and they started on a expansion project last year so over the summer the pool was up for renovation. My backup was also a high school which closed for renovation. 3rd was a middle school and they are closing for 2 weeks to do summer maintenance(school starts right after maintenance is up). I should probably find something other than a school as a back up.
I am not too concerned about losing swim fitness, but I was considering adding a bike or run to the week to help keep training hours and tss up. Although, I am not sure a extra bike and run will make any impact on fitness in the grand scheme of things.