We'll be vacationing in Acadia the last week of June with our 3 boys - 11, 9, and 3. I'm hoping to surprise the 2 older boys by doing a half-day climbing session at Otter Cliffs. None of us has any experience, but both of these companies get great reviews here on TA. Is anybody familiar with both of them that could tell me how they differ in terms of safety, quality of guides, price, group size, etc. to help me make a decision? Thanks!