Planning on visiting Cleveland area for a few days mid June. I can guestimate that Rock N Roll Hall of Fame & MetroParks Zoo can probably be done on 1 day. Not sure how much time to plan on visiting the park. I have 2 preteen kids that can do shorter hikes...but won't do anthing over 2.5 miles. Any help on time needed to visit as well as accomodation recomendations.