Divide it into four

When I am doing my distance runs or swim I try to divide the session into quarters. In example yesterday I did 20 x 200 meters in a 25 meters swimming pool, that’s a total of 4000 meters or 160 turns! I divided into 5 x 200 meter with 10-15 sec rest between the sets and then 1 minutes rest before next 5 x 200 meter. In this case it was only 4 times 1000 meter and that much easier to perform :-). For Island to Island which in our case will be ongoing for 12-13 hour I think we need to aim at the next station because if we see the entire course ahead we will never make it. What do you think?

//Pontus