We haven't been to Iceland yet (will be next year on Sea Princess), but have often gone to Norway & the Fjords. Again on Sea Princess which does tend to attract mainly British passengers, as well as Cunard & P&O ships - Which ship are you on? Grand Princess??
What sort of information were you after? All the ports are very pleasant, the Fjords themselves quite stunning (unless you've cruised in Alaska & the Inner Passage). Most of the tours anywhere in Europe appear to be a lot more expensive then those in the States, and that's without having to worry about exchange rates, but are very high quality.
The weather in June / July is usually excellent, and you'll get some great views of the snow & ice capped mountains with clear blue skies, green hills & crystal clear water. Some of the ports can be explored using public transport, but with others, you really need to book one with Princess.
Let us know if you have any particular questions or concerns & we'll try our best to help.
Hope you have a memorable cruise,
Alan & Katrina
Last: P&O Oceana December 2016
Next: NCL Jade August 2017
Then: P&O Ventura December 2017
Golden, Grand(2), Caribbean, Royal, Sea(4+1 aborted)
Adonia(4+2), Arcadia, Artemis(2), Aurora(5), Azura(2), Britannia, Oceana(4), Oriana(12), Ventura(2), Victoria(5)
QM2(2), QE2(9), QV(7), QE, Caronia(2),
Oceania Nautica, Minerva, Minerva II, Fred.Olsen(8), NCL Jade, =X= Eclipse, HAL Ryndam, Aza.Journey, CMV Magellan