Amphibian
Since GMSL are following IMCA guidelines their course will be the same as all the rest with the exception of no live sub to play with. Portland is their main depot for subsea kit so you’ll get the opportunity to see a variety of equipment as well as meeting some employees and maybe even get the chance to wonder around one of their vessels and see the team performing system checks or even a dock dip.
If you shine there’s always an employment opportunity there although they’re not the best company to work for and certainly not the best payers.
Good luck
😉