Are ports worth sailing into?

[Eichenlaub]

I was wondering whether it was really worth to sail into an allied port? I entered Scapa Flow somewhere in spring 1941 and all I found was a Fiji Light Cruiser. I did have to sink 7-8 other warships to in- and exfiltrate (I play at 79% realism).

A recent foray into Gibraltar in the winter of the same year gave much the same results: I found one stationary T3 Tanker, a docked Coastal Merchant, a docked Hunt I and some ships that came hunting for me in the lagoon after I started blowing up the moored ships. All in all the trip in and out of Gibraltar (from St. Nazaire) was tiresome (loads of warship contacts) and netted too few results.

You see, I play without mods because of my poor pc specs ergo I must "score" 40,000 tons per patrol to really achieve something.

Are there any ports with decent targets? Any place where I can find some warships other than destroyers?

Kind regards,

Eichenlaub