Standup Journal: SUP Foiling by Alex Mauer 0 6 31 Dec 2018 08:04 Playak Global PartnerStandup river legend Alex Mauer goes all-out in learning to surf a SUP foil. From River Surfing to SUP Foiling. Alex Mauer finds new passion in SUP I went to Folly Beach, South Carolina this fall to try standup foil surfing.