UUs retreat

I spent part of this week with my UU ministerial colleagues, at a Catholic retreat center in southwestern Ohio. Grailville has a labyrinth, a constructed wetland wastewater treatment system, and a very comfortable feel to it. We UUs need to build more retreat facilities. There are a few, but some are pretty fancy, compared to the Spartan-but-comfortable Catholic centers I've attended. Decent beds, communal bath facilities, vegetarian food, some good natural surroundings, and a well-stocked bookstore are sufficient. Maybe an internet connection, although I can see a reason to *not* have that, too. What would you want/need in a UU retreat center?