Just for example my last trip to Phuket:
GoPro 6, Session as backup and of course extra batteries and charging cables
All mounts I hope to use it
Removu S1 gimbal with equipment
Telesin Dome for 50/50 shots in the water
Dji Mavic Pro with full equipment like extra battery, charge unit ND filters and so on ...
IPad and IPhone
So you see this is a lot of stuff just to get good vids.