24 hour relay swim strategy

Our team has been challenged to enter an 8 person relay team in a 24 hour swim event. The rules are a little different than I expected, and perhaps our contact was confused about them but they were explained as: Each swimmer can only swim 50m before alternating with another swimmer Multiple swimmers from the team can be swimming at the same time At least one swimmer has to be in the pool at all times for the 24 hours. I am wondering about the physiology of swimming for that long. Assuming that everyone is roughly the same speed one will be swimming and resting for roughly equal periods. Should one stay aerobic the whole time or push it a little bit anaerobic knowing you have recovery time? Should one plan on rest breaks and if so for how long? The brute force approach would be to have four pairs of swimmers with each pair alternating for the entire 24 hours. I'm not sure if that is feasible let alone if it would be "fun". The alternative would be to have some sort of rest/sleep schedule. The question then is how long should the breaks be and how often? Then there are feeding issues... Any thoughts? The funny part is that we were told about this before our swim and we were all saying "I don't know, that sounds kinda crazy" and then after the swim was over we all got out and were saying "that's crazy, but we should do it!". Endorphins I guess!