Take Metro line 1 (the red line) to Tajrish station. Get off at Tajrish Station, take the exit to Qods Sq. Find Lavasan Taxi at Dezashib Ave (Niavaran St.) and take a shared taxi. After getting to Lavasan, the taxi will pass Imam Khomeini Sq. (A big roundabout). After 500 Meters, you will find Adventure Iran Office on your right side, No.688.
Take metro line 3 (the blue line) to Ghaem Station. Get off at Shahid Mahallati station, take the exit. Use the bridge to cross the road. Walk 200 meters to East and you will see Lavasan Taxi station. Take a shared taxi costing 40,000 Rials. After getting to Lavasan, the taxi will pass Imam Khomeini Sq. (a big roundabout). After 500 meters, you will find adventure Iran Office on your right side, No.688.