MAMMOTH LAKES
Mammoth Mountain Resort, from $152 per room per night
With the Stay & Bike package, you'll be treated to accommodations and an All-Day Bike Park Pass. The bike pass gives each person access to 90 miles of trails around the resort, which is located in central California, on the eastern slope of the Sierra Nevada mountain range and near Yosemite National Park. In winter, ski bunnies abound on the slopes, but the summer months are perfect for biking; you can get up the hill by bike, or opt for the gondola, the shuttle, or the ski lift. There's also a full service repair shop, and Kona bike rentals are available. Rates start at $152 per room per night.
When: June 20-Sept. 22, 2008.
Details: Based on double occupancy; single bookings start at $120 per room per night. Does not include taxes of 13 percent. Bike rentals start at $40 per day.
Contact: 800/626-6684, mammothmountain.com.
SAN DIEGO
Loews Coronado Bay Resort, from $259 per room per night
The Volunteer Vacation package at the 440-room resort on the San Diego Bay lets you kick back at the beach — and do your part to keep the area clean for others. You'll take a tour of Silver Strand State Beach (with direct access from the hotel) to learn about the wildlife, led by a state park educator, and participate in a beach cleanup or planting project. Accommodations in a deluxe room and two boxed lunches are also included. During your stay, you can take advantage of the resort's spa, swimming pools, tennis courts, and herb garden. Rates start at $259 per room per night.
When: Fridays and Saturdays through Dec. 28, 2008.
Details: Double and single bookings available. Does not include hotel taxes of 9 percent.
Contact: 619/424-4000, loewshotels.com.
OXNARD
Embassy Suites Mandalay Hotel & Resort, from $275 per room per night
When you book the family-friendly Summer Getaway package, you'll get three nights' accommodations in a two-room, two-bath suite at this southern California resort with 248 suites and beach access. You'll start each day with a full complimentary breakfast and get one in-room movie or hour of Nintendo play, two bike rentals, a $50 credit at Capistrano's Restaurant at the resort, parking, and drinks at the resort's nightly happy hour. Oxnard is about 60 miles northeast of L.A. and hosts a Salsa Festival in July. Rates start at $275 per room per night, or $825 for the required three-night stay.
When: June 1-Sept. 7, 2008. Details Single and double bookings available. Children under 18 stay for free. Does not include hotel taxes of 10.1 percent.
Contact: 805/984-2500, embassysuites.hilton.com.