Unique Training for 3 Weeks

So here is my situation: I am heading home to Vancouver BC for three weeks and will hopefully be training at least every-other-day at Kits Pool. Kits Pool is a peculiar set up; mostly a historical remanent from the early 20th century. It used to be a tidal-fed pool when I was really young: fill it up at high tide, empty the dirty water days later at low tide and start all over again. Pretty simple set up. It is now a "real" pool: clean water, lines on the bottom and training times for fitness freaks. The pool is, get this, 137.5 meters long. That's right: less than 12 lengths to the mile. The pool has just two lanes, each about twenty or more feet wide: you circle swim counter-clockwise and passing is done down the middle. There is even arrows painted on the bottom of the pool for the dull knives, and the distance from the end is marked in 25 meter increments. vancouver.about.com/.../kitspool.htm So, anyway, does anyone have any suggestions on work-outs? I plan on doing about 4500 to 5000 meters per session, but I might break it up into 1500 sessions with appropriate sun-tanning time on deck with my wife (to keep the marriage civil during a vacation). I really am not interested in just doing straight swims, but that is what I have done before (6 lengths swim, 6 lengths pull, 6 lengths kick then repeat). By my calculation I should be able to hold about 2:10 per 137.5 length, but I really have no idea since there are not going to be any turns on that swim to help me on my way. Ayone good at thinking outside the box. I will try just about anything once.