Rode VideoMic NTG Hybrid Analog/USB Shotgun Microphone so you'll be sure to

so you'll be sure to have exactly the type of light you need for the dive and works extremely well with wide angle cameras such as GoPro

The Mars 300 set comes with five antennas (including one spare)

and up to 520 MB/s sequential write speed with 500 MB/s sustained write speed

Compatibility: Three-prong interface designed to fit virtually every GoPro HERO housing

Alcohol swab

Rode VideoMic NTG Hybrid Analog/USB Shotgun Microphone so you'll be sure toThe Rode VideoMic NTG gives video content creators, run and gun filmmakers, voiceover artists, and podcasters the sound of the highly regarded NTG shotguns in a convenient camera mount mic that requires no additional adapters to work with cameras, smartphones, tablets, portable recorders, and USB equipped computers. With focused directivity, continuously variable gain, digitally switched tone controls, and an internal USB rechargeable battery, the