Staying on Pace in open water
I have looked through the threads and don't find this, although it has to have occurred to someone else in the past. I am a swimmer of slow to moderate speed, 1:50 is "cruise" pace in the pool but in open water I turn into a slug (who swims) and my times can drop by as much as :20 seconds. Last weekend in open water I thought to try my tempo timer and, voila, it worked. Pace was about what it is in the pool. However, tempo trainers are not de rigeur unde OWS rules, so this is not a complete solution (not to mention if I swam for hours with that thing beeping in my ear I would feel like a character in a Jason Bourne movie! )
How to stay on pace without modern technology? Thanks in advance!