Used to have a blast driving on the frozen lakes when I was in high school! Ice skating was great, too - haven't done that in years. These days I do a lot of mountain biking on frozen ponds and brooks with studded fat bike tires. A lot of fun to go places that are inaccessible during the rest of the year.
Way cool! Reminds me of growing up on Lake Erie. We used to drive out on the frozen lake, drink some beer, shoot the bottles. Crazy, stupid, kid stuff!