[IndispensableDestiny]

Laplata was referring to HMS Serapis. The wreck appears to have been located off the coast of Madagascar in 22 meters.

[piasa]

Yes- here’s a good link to an ongoing project on the vessel:

http://serapisproject.org/expedition.html

Unfortunately the fellow who got the project going passed away unexpectedly from malaria... but the project’s still linked to New Hampshire.