At Lucerne, take the A14 towards Zug. At the Rütihof motorway junction, take the A4 motorway in the direction of Brunnen. Take the motorway exit Brunnen and follow the signs towards Brunnen am See.
Coming from Lake Constance and Rapperswil:
From Rapperswil, drive in the direction of Gotthard/Schwyz. At Pfäffikon, take the A3 motorway for a short distance in the direction of Gotthard. Take the first exit in the direction of Gotthard/Schwyz. The country road leads you via Rothenthurm and Sattel to Schwyz. In Schwyz, drive in the direction of Brunnen, then Brunnen am See.
Coming from Gotthard-Altdorf:
Take the bypass (tunnel) at Flüelen in the direction of Schwyz. After the Mositunnel, leave the motorway at exit 40 Brunnen (direction Weggis/Gersau/Schwyz/Brunnen). Drive in the direction of Brunnen am See.
Schweiz Mobil Route 803: https://schweizmobil.ch/de/mountainbikeland/route-803