We only used the mugs in the morning, for coffee, but the bar at El Centro, was open late. We don't do the pool though, we have a pool, so not something we do at Disney. It is beautiful to take pictures of though.It wasn't necessarily the distance as much as the convenience that was the issue. When we got back from a long day in the parks and wanted to grab a quick drink using the Rapid Fill Mugs, you have to make the walk all the way to the El Centro area (and back). If the Siesta Cantina (pool bar) didn't close at 5:00, it wouldn't have been that much of an issue.