Once you have registered in the App, you have two options to donate.
1) If you see the green heart-shaped QR code displayed anywhere at the trailhead simply open the LuvTRAILS App, tap the Scan icon [ ] in the upper right corner on the Homepage, point the scanner square at the green QR code and it will take you to the relevant Donations page to make a donation. Provide your credit card information and complete the transaction.
2) If there is no LuvTRAILS QR code on the trail or at the trailhead you can open the App and it will show you at which Venue and Trails you are with the help of the geolocation of your mobile device (if location access is enabled). It will direct you to the relevant Donations page of the local beneficiary organization.