One subject I have been having a lot of fun with lately is capturing abstract images of waterfalls or rapids. A couple bonuses about shooting these is you can do it just about any time of year and it requires minimal gear, therefore I can hike lighter which is always a plus to me. Typically I bring one camera with a telephotos lens and ND filters. I may bring a tripod depending on the location and my goal. You would need a tripod if you are going to include anything in your image that is stationary to ensure it stays sharp with the slow shutter speed you could be using. Often though I won't bother bringing the tripod and just stick to more abstract images to keep things light and free. No two images will look alike which is part of the fun. You can vary your composition and shutter speed to change the outcome of each image. You never know what you will get! 

Do you enjoy viewing or photographing wildlife? It can be a good way to get out and enjoy nature during this difficult time we are experiencing. Below are a few wildlife subjects to look for during late spring/early summer.
First half of May- Warblers in their full breeding plumage. Also look for indigo bunting, scarlet tanager or rose-breasted grosbeak. Start searching prairies for upland sandpipers, marbled godwits, bobolinks along with butterflies and wildflowers. Trumpeter swans will be nesting in marshes of central and northern Minnesota, with their young hatching by mid-June (please keep a respectable distance). 
June- In northern Minnesota watch for ruffed grouse and spring songbirds. Shallow prairie marshes may have waterfowl and waterbirds. Watch for grebes, coots, ducks, swans, blackbirds, wrens, rails, minks, and otter.
Use binoculars and a telephotos lens, keep your distance and be respectful. If you notice the animal is stressed, back off. Especially during nesting season. 
Visit your local DNR website for more Information on wildlife near your area.