In a four-day sale, BookIt.com is offering 60%-70% off 100 all-inclusive beach resorts in the Caribbean and Mexico.

The best thing about this sale is that it covers a wide range of resorts -- from family-friendly to adults-only -- and is available select dates into December. All deals include unlimited food, drinks (including alcohol), activities and entertainment.

Some of our favorite deals include (based on double occupancy for April-June travel):

• Punta Cana: 4.5-star newly opened resort ... $198 ($99 per person)
• Cancun: 4-star family-friendly resort ... $258 ($129 per person)
• Montego Bay: 4.5-star upscale Hilton ... $268 ($134 per person)
• Riviera Maya: 4.5-star adults-only resort ... $296 ($148 per person)
• Puerto Vallarta: 4.5-star luxe Hyatt ... $352 ($176 per person)

On top of these already-low prices, the longer you stay, the more you save. Get an additional $50 off stays of 5-6 nights using the code RESORT50 or $100 off stays of 7+ nights with RESORT100. Double your savings if you book a package with airfare: Save an extra $100 on stays of 5-6 nights using PACKAGE100 or $200 on stays of 7+ nights with PACKAGE200.

Availability is limited. Sale ends at 11:59 p.m. PT Friday.