Here's another one to buy now and hold onto for summer! Groupon is selling a voucher for 66% off Standup Paddleboarding from DFW Surf on Lake Grapevine. There are options to choose from 1, 2 or 4 people starting at just $25. Includes an introductory lesson and 2-hour standup paddleboard rental. Go HERE for full details. This looks like fun!