I guess we are the minority on this one. The Nemo subs are a must do for us, especially since they tore the 20,000 Leagues under the Sea ride out at WDW, instead of turning it into Nemo. It is about a 13 minute ride, so it does take some time, but we do it in the morning because it does not have fast pass. We have never had trouble getting FP for Star Tours, SM, Splash and Indiana Jones all in one day- even though we are usually at DLR in June or July. Nemo seems to have a long line all day long. In the morning- we head for Peter Pan first, and then go to Nemo- usually stopping at Alice on the way. I think the longest we have waited is 20 minutes and usually it is 10 or 15. I've never noticed it as hot or stifling, but maybe that is because we go first thing In the morning before the weather heats up and people have been in them all day. That line seems to be 45 minutes to an hour (and occasionally more) every time we have checked for the rest of the day. If we don't ride it early in the morning, we usually don't ride it at all. As far as waiting until right before closing- in June and July DL closes at midnight-- which if you want to be in the parks at 7:00 a.m. the next morning for an early morning- or started your day at 7:00 a.m. that day- might be a little rough. We find the first couple hours in the morning less crowded than the last couple of hours at night, so while we stay in the parks late, we usually head out between 10:30 and 11:30 p.m. to get showered and some sleep to get another early start.