we need to feed power of 60kW to island villa
You probably need a higher voltage than that, depending on the distance. That is 1500 amps which needs a hugh cable. This should be stepped up to a much higher voltage. And yes, cables are available. If you don't know that, then you need to hire a qualified electrician to do this. edit, sorry, 150 amps, less if this is 3 phase. But still a lot of current. AND the wire size will depend on the distance. More than a few hundred feet and the size has to go up to keep the voltage drop below 5% .
The power cables should be stored on the submarine by the Electrician Mates as ours were on a destroyer. 60KW is not that much power and one three phase cable can handle it.
the current will be about 87 Amps.You can use 3ph,4 or3 1/2 core, 400V,35 sq mm copper marine cable