@22 degree
Knowing well all three worlds
-hamradio
-helicopters (heavy one included)
-sea from surface and bellow
can suggest following:
All that is possible but thanks to harsh environment can not be done cheap...
You need one AS350 N3 or even better AS355, with sling (maybe hoist too)
and 40 - 60 m long supply ship with clear flat deck on stern side.
200 to 300k USD budget and also fair forecast included.
To go just with helicopter is difficult because of several reasons,
helicopter must be The real big one, means expensive block hour, can not stay
near, even if it is amphibious one. It is almost impossible to sling cargo and hoist people on same approach, etc.
So combination of reasonably priced small single or twin with supply ship is fair
enough approach to project.
Till you raise that budget come to Adriatic, weather is better and rocks are not
so dangerous.
