For traveling between Cat Ba and Halong, there is a new cruise named La Pinta Cruise
. It starts to run in March 2018 and is ranked 4-star cruise. But it has no land stop. That means you will be taken by cruise during the trip.
Besides Cat Ba, Do Son is also breathtaking. But some beaches are clean. If you want to swim in the sea, it's best to go to the area 2. The food in Haiphong is extremely impressive. Some typical ones include banh da cua (noodles with crab), banh my cay (spicy breadstick), banh cuon suon (stuffed pancake with ribs).