I'm sure Clifford and Jerry Melvin went. Twin Bridges and Tunnel Mills were the swimming holes in the East Fork of the Little Miami. I swam more at the latter,while Dad bass fished the 3 mile loop in the creek. The tunnel caught the water before the 3 mile loop,and the mill was at the lower in. My wife's grandfather built his barn on Ohio Rt 133 just north of new Rt 32, from materials ]salvaged from Tunnel Mill. Many brave youth would dive from the top of Twin Bridges north bridge's east side. I went off the floor. 18-19 year old Donnie Corsmeir drown at Twin Bridges,and then was revivied,only to have swallowed the polio virus,which ruined his legs.