Book this day trip to Halong Bay and experience everything the area has to offer. You'll have the chance to hike, kayak, and visit Sung Sot Cave. You'll see Halong Bay from all angles. This tour also includes round trip transfers from Hanoi's Old Quarter, so you don't need to worry about transportation arrangements or costs. If there are any issues, you can contact your guide by WhatsApp. Just relax and enjoy your day out.