Brian Grubb rides America’s longest subterranean river
Deep within the pitch-black depths of Bluespring Caverns in Bedford, Indiana, two-time world wakeskating champion, Brian Grubb, initiated an unprecedented venture.
Submerged an incredible 98 feet (30 meters) beneath the surface, he readied himself for a groundbreaking exploit – the world’s first underground e-foil expedition.
Guided by the spectral luminescence of LED lights fastened to his e-foil, Grubb coursed through the aquatic topography.
