The newest form of lodging in Minnesota state parks — the yurt — has become one of the most popular. Seven of the insulated canvas tent-like structures, built in 2015, are available for booking in three locations, and they’re already reserved for most weekends this summer. The yurts, available at Afton and Glendalough (in Battle Lake) state parks and the Cuyuna Country State Recreation Area, have a domed roof with skylight, windows, bunk beds, and a table and chairs or benches, and sleep three to seven people. The sleeping accommodations differ depending on the yurt. The yurts don’t have electricity, but they do have wood stoves for heat. To check availability and get more details, go to bit.ly/yurtminn. Speaking of state park sites, remember reservations are required for all Minnesota state park campsites. The state used to keep about one-third of the sites for arrivals at the parks, first-come, first-served. State parks officials strongly suggest reserving campsites (and park permits) in advance.