Are there any novice summit hikes near Lake Wenatchee State Park?

My teenage nephew from Texas will be visiting me in Washington this summer. Since he lives in the sweltering flatlands, I’m wanting to take him out camping and hiking in the mountains. I’ll have my dog with me so I’m looking at campsites in state parks and found some availability at Lake Wenatchee. My question is if there are any recommendations for a day hike that wouldn’t require more than an hour drive to get to? Something similar to Mt. Si would be really cool where it’s under five miles in each direction and gets us to a mountain summit or at least a good viewpoint. The Enchantments are out for several reasons, not least of which is the dog who will be with us.

Thanks!