Talking about the price, the driver came to pick us up on time. About 15 minutes later, we arrived at a small pier. Our guide was called Adi, which was Indonesian Chinese and spoke Chinese. It turned out that Atong deliberately helped us arrange a guide that spoke Chinese. Put on a life jacket and board the speedboat and wipe the sunscreen on SPF50 and set off. Adi told us along the way that the river we are driving is called the Sibang River, which is a saltwater river flowing to the sea, so it is very conducive to the growth of mangroves. To confirm his words, I dipped my fingertips in water to taste, yes, salty.