Hi mate
The Shangri la has its own charter boat that goes out daily weather permitting. Went last October , we managed to catch 2 mahi mahi a 5kg and 8kg and lost some others. My mate just got back from there last week and went on the same boat , they got a 12kg yellow fin tuna and lost one at the boat that was estimated to be at 60 to 70 kg, they also got a 10kg Spanish Mackeral... Dont think there is any other game boats in the area unless you drive to Denaru..