There aren't a lot of guarantees in life; Thankfully, Sunday River takes away some of life's uncertainty by providing a guarantee that skiers and riders will receive the best prices on their winter vacation when booking early -- by October 15 to be exact.

With Sunday River's Lowest Price Guarantee, book a ski trip for any time this winter by Oct. 15, 2012 and you'll get the absolute lowest price of the year - guaranteed. If, by some crazy chance, a better price is offered later this season on your trip, they'll automatically reduce your rate to match. That's not the only guarantee Sunday River is making to their guests.

Mother Nature, as we all know, can be unpredictable and she rarely consults the schedules of skiers and riders before vacation season is in full swing. Sunday River's got a plan for this with their Snow Guarantee. Buy a lift ticket any day this winter and if after taking at least one run you find that the snow conditions aren't to your liking, you can exchange your lift ticket for a voucher to come back another day. Just bring your ticket to Guest Services by 10am to make the exchange.

The Lowest Price Guarantee is available on all of Sunday River's ski and stay packages. Rates include slopeside lodging, a lift ticket and a free adult ski or snowboard clinic. Accomodations at the the Grand Resort Hotels and Snow Cap Inn also include breakfast. Weekends require two-night stays over Friday and Saturday, most holiday periods have minimum stay requirements as well.

Daily ski and stay rates start at $65 per person, per night for the Snow Cap Inn and up to $165 per person, per night for the Grand Resort Hotels. Prices vary based on date and availabilty. View the full selection of ski and stay packages at sundayriver.com.