I am from York, PA, but currently live in MD. I have brought some of my planes along when visiting family though. Saw posts on RCG about a York group doing some water flying out at Lake Redman last year, would love to get my micro Icon A5 out there.
The club is YARCC, York area radio control club and they will be doing a float fly this year on 6/13/2015. I was at the meeting on Tuesday. They don't have it posted on their web site yet but they will have several fun fly days at their field and other events.
Check them out http://www.yorkrc.org/
I am a member of the club and they have a nice flying field! The float fly is at Lake Redman, I missed it last year do to working that Saturday.
They do require all pilots to have an AMA membership and allow visitors to fly without being members of YARCC up to 3 visits.