In a Nutshell
Friends and families grab their smartphones before heading out on an adventurous walking tour looking for clues and racking up points
The Fine Print
Expires 90 days after purchase. Limit 1 per person, may buy 2 additional as gifts. Limit 1 per person, Limit 1 per visit. Valid only for option purchased. Registration required. 24-hr cancellation notice required. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.