Round trip. At the mid-point of 2010 road bike season, goal today was to see how even a cadence and within how steady a range I could keep the H/R for a casual Sunday ride. Avg spd at 10 mile marker: 12.0 mph. Typical mid-summer activities ongoing as Cranberry Meadow Pond was passed: one young sailor on what looked to be a well-preserved 1970s vintage AMF Sunfish sailboat (nice steady 10 to 15 mph SW winds great for learning w/ occ'l 25 mph gusts for a challenge), another larger sailboat off in the distance at southern end of pond, an outboard motor boat towing a kid on a tube behind, a family of swimmers near shore and the overhanging tree-branch rope swing, two fishermen, and a couple and a few people out for a walk w/ and w/o the dog . Air temp 79 F , dew pt low 60s F, breezy SW winds 10 to 20 mph.