Make sure to check with local clubs for trail conditions, even tho you see groomers on the trails it don't mean the trails are open. Many of hours of work are needed to prep the trails, groomers have to go out and pack swamps, creeks, washouts before a trail can be ready. That smooth trail you go over in the winter is totally different in the summer.
Ive taken snowmobile friends out on the trails in the summer on quads and they could nott believe the terrain the trails where going over, the holes the mud pits. During trail prep we have to fill in wet areas with snow and pack it down, the water soaks in the snow and then freezes rock solid, then once solid you can drive over with the groomers. You can check out my videos on youtube and see me doing trail prep and packing.
So please be patient with the local clubs. Give them a call, they need all the help they can get.2