There’s no rest for the wannabe Olympian here. Once the snow melts, the cross-country skis are replaced with skulls. Boaters come from all over to ply the waters of Big and Little Hosmer lakes at the first-ever rowing camp in North America. They work with world-class coaches, eat good food and take classes in related disciplines such as yoga. Runners, too, flock to Craftsbury to improve their technique and hang with other hoofers. The vast network of trails, groomed for marathon cross-country skiing, are just as inspiring in the summer.

Smugglers' Notch resort rocks on, with a new summer emphasis on climbing. The ski area is offering weekly rock-climbing socials and family climbing-adventure days. Hard-core types will be more interested in via ferrata — Italian for “iron way” — a new adventure sport that combines climbing, hiking and high-ropes adventure. “Safely traverse local gorges,” the description promises. “Scale huge boulders.” Too ambitious? Smuggs also offers Segway excursions on those self-balancing scooter contraptions. Amazing, there’s an all-terrain “extreme” tour that goes for the glades.

Stowe’s hills are definitely alive, and no more so than at the Trapp Family Lodge. The Sound of Music association has worked well for the 2400-acre Austrian-style resort, which is a cross-country ski center in the winter. In summer, it offers hiking, horse-drawn wagon rides, bird-watching tours and Sunday evening “Music in the Meadow” concerts. The “Real Maria” documentary film shows twice a day.

Stowe Mountain Resort, like every other Vermont ski area, is in global-warming gear. An “All Day Summer Attraction Package” — $70 for adults, $64 for kids — includes use of an alpine slide that drops 2300 feet; a bungee trampoline that requires a full body harness; and an inflatable obstacle course. The traditional gondola skyride is always nice, especially when there’s a restaurant serving gourmet Vermont lunches at the top of the mountain. Prefer to get there on your own?