Spend a week on the lower bay (northern neck and south) visiting the marinas, have a resume in hand, ask to meet the owner, if possible and make your case, but be ready to work, get dirty and be in the weather, while at the same time being discrete and respectful of other peoples gear and boats.... I think you will be surprised and will find a job.
Once in, do what they tell you with energy, and offer to take any courses (only employed techs are usually allowed to go to the vendor schools and such) or OJT they may provide. Spend a few weeks listening, before opening your mouth about trying it your way.
I have seen some really tough bosses become the best teacher in the world,if the apprentice listens and responds with work.
You may ask about apprenticeships or internships...low pay, but training and a free slip...
You may ask a surveyor to tag along as well, as they see tons of things as well.
all the best.