Dau Go Cave, a stunning natural wonder in Hạ Long Bay, Vietnam, is primarily accessible via organized boat tours that traverse the bay, making solo visits impractical. Access to the cave entrance involves climbing a number of steps, so it may not be fully accessible for individuals with mobility challenges. While generally open year-round, boat tours can be affected by adverse weather conditions, particularly during the monsoon season (May-October), with the drier months (October-April) being ideal. The cost is typically integrated into the price of a Ha Long Bay tour, which can range from $30-$150+ depending on the tour's duration and inclusions, and the typical visit duration inside the cave itself is around 30-45 minutes. Visitors should wear comfortable shoes suitable for walking and climbing steps, and it's often visited in conjunction with other caves like Thien Cung Cave, offering impressive stalactite and stalagmite formations.