An incredibly beautiful experience, but also exhausting and very challenging. If you are not too naive and know that it is also associated with dangers and overcoming, an absolutely recommendable experience. Mr. Chang was responsible for me and gave me a high level of security and confidence. Very professional and friendly. If you are looking for luxury, you might want to look elsewhere, but everything is in top condition and, in addition to enough to drink, there is also very tasty Thai food on the boat. There was also at least one vegetarian option on both dive trips :)