OBrien Barca 3 Three Person Towable Tube The OBrien Barca 3 is a three person towable tube that features two-way towing for an even more exciting experience! This tube can be towed from either end, allowing multiple riding positions. Riders can ride the Barca 3 chariot style or flip it around, sit back, and relax. The combination of EVA pads, split seating and 12 handles with EVA knuckle guards makes the Barca 3 one of the most comfortable tubes out there. Equipped with OBriens lightning valves