We are a family of 4 with kids aged 7 and 4 looking to do a nature-centered vacation in August somewhere in the states. We live in Southern Ontario near London ON. We have looked at Cuyohoga Valley National Park in Ohio and wondered if theres any other suggestions. We want somewhere where we can bike and go hiking on trails and enjoy the outdoors. Also looked at Great Smoky Mountains but its about 11-12 hour drive vs the 5-6 drive to Ohio. Any other tips or ideas would be appreciated. Going for around 4-5 days and just didn’t know if we’d run out of things to do at Cuyahoga Valley.