I've joined the Berkeley Paddling and Rowing Club, as a nearby place for both fresh air and fitness. My particular build responds very well to rowing, rather than running or heavy weights.
I've got rowing in my blood from a great-uncle, Martin Boland, who was part of a record-setting crew in Newfoundland. Not only a record, but a record-setting record! The St. John's Regatta is the oldest continuously held sporting event in North America. The record stood for 80 years, which I believe (citation needed) is some kind of record for athletic records.