(CNN) -- An extra day once every four years doesn't really give travelers much more time to play, but it's an excuse for the hospitality industry to create special Leap Year travel offers. (Each year is actually 365 days plus about 6 hours. An additional day is added to the calendar every four years to keep the calendar in sync with the seasonal year.)
Swim into San Diego. If you stay three nights at the Hotel Palomar in San Diego, the fourth night is $29. Also included are a $29 daily food and beverage credit and morning coffee and tea service in the hotel living room. The rate must be booked by February 29. Rooms start at $229 and the fourth night charge is $29. The offer is valid for travel between February 22 and March 7. Call (888) 288-6601 or book online and include rate code PLPY.
Stay up all night at Disney. For the first time ever, both Disneyland in Anaheim California and Magic Kingdom Park will be open on Leap Day for 24 hours starting at 6 a.m. February 29 (Select attractions, entertainment and services will be available.) If you can't take mid-week trip to the Happiest Place on Earth, you can still enter to win a vacation package every day through February 29.
Donald Trump at a discount. Trump Hotel Collection properties in New York, Chicago, Las Vegas, Panama, Toronto and Waikiki are offering 29% off all suites booked on February 29, 2012, for stays between March 1 and April 30, 2012.
Daily rates for suites before the discount for March 1-April 30 start at: Trump International Hotel in Chicago from $458; Trump SoHo New York from $645; Trump International Hotel in New York from $995; Trump Ocean Club International Hotel in Panama from $289; Trump International Hotel in Toronto from $695; and Trump International Waikiki Beach Walk from $619; Trump International Hotel Las Vegas from $169. Reservations can be made online or by calling (855) 878-6700.
A stroll through Harvard Square. Think smart and bookmark February 29 at 2:29 pm to make your reservation at the Charles Hotel during the hotel's one-hour online flash sale. The Charles is offering 29% off new reservations for deluxe rooms and suites made between 2:29 p.m. and 3:29 p.m. Limited blackout dates apply. Standard daily room rates start at $199.
Commit to Paris now, travel later. Book your reservation at the Hotel de Buci by February 29 for a visit anytime in 2012, and upgrade your room for an additional 29 euros (based on availability at check in). Also enjoy breakfast for two for 29 euros. Daily room rates start at 260 euros. Book at the hotel's special leap year site.