For several years I've been involved in the Waquoit Bay Summer Science School! Great programs for different ages to get out and explore Waquoit Bay NERR and learn about the watershed and estuary!
In 2014 and 2015, I am involved in the EPA funded Summer on the Marsh Project. Through citizen science, middle school age children are collecting important data on their local New England salt marsh.
There are opportunities for undergraduates to intern at the USGS and WHOI. These are great opportunities to do research and explore potential careers. For other opportunities in science research, check out the National Science Foundation's Research Experiences for Undergraduates page.