Russian forces comprised five ironclads plus two blockships, which they would try to sink at the entrance to Pola Harbour (just the blockships, that is). The Austrians also had five ships, plus three shore batteries at their disposal. The map below (done in MappingBoard) shows the playing area, which is supposed to be located on the Croatian coast in the Adriatic. Not a lot of detail really, but then it is mostly sea.
Overall, it was a successful game - from the point of view that we had a scenario that was interesting (I think, anyway), had a clear objective and was worth fighting for - and also from Geoff's point of view specifically because he won the battle so emphatically. Furthermore, the simplified version of Paul Hague's ironclad rules allowed us to finish the game in one evening even though there was a bit of re-familarisation to be done.