You can book and pay for some Groupon Getaways directly on Groupon.com using the calendar located below the location photo, according to Groupon's FAQ section. Other offers are available as vouchers, which you purchase on Groupon but redeem on separate sites.
Once you have chosen and clicked on the Groupon Getaway, check for a Select Dates button on the right-hand side of the page. For Groupons that you can reserve directly, this button shows a calendar with available dates. Make sure to read the Groupon location description as well as the What You Get section to learn about the inclusions as well as any restrictions or extra fees. Click the check-in and check-out date, select any further options (such as room type, if you are booking a hotel), then click the green Book button to book your room using your Groupon account.
Other Groupon Getaways list departure dates by price and come in the form of vouchers. These vouchers are available in the My Groupon section of your account. Call the merchant using the instructions provided on the Groupon description and supply the information listed on your voucher. You need a credit card to book, but it is not charged. Groupon offers the Groupon Promise, which refunds your Getaway purchase if the merchant is unable to book you on the promised date.