Re: Ohiopyle Biking/Rafting
You started out biking on the Yough trail in a town called Confluence. They indeed rent bikes/canes//rafts there etc... I thought Ohiopyle was more like 12 miles down, but I could be wrong. Ohiopyle (below the falls) is the main attraction for rafters. Plenty of attractions that cater to tourists in both Confluence and Ohiopyle.
Google "Confluence attractions" or Chamber of Commerce, something like that, if you want to start out biking in Confluence.
Also, there is a very nice house in Confluence called "Dam Yough House" that rents. Rustic type of restoerd home. Not sure of your funds, as it's a hair pricey in my book, but very nice. Firepit for night sitting, etc...