“Sailboat Cove” is written in large letters on the sign. The boathouse is big, tan and tucked behind a 320-acre lake. In front of it are rows of long, white boats, some accented with red or blue stripes....

Rowing She thinks of life as spontaneous. Spontaneous in good ways. And spontaneous in bad ways. When she was 12 she made a bet with her mom; if she could train for and run a marathon at age 16,...