Silversea does expedition cruises too. We did expedition cruises with them to Greenland and Svalbard. We’re on another expedition cruise with them that starts in Male and ends in Singapore; it goes to a lot of out of the way places in the Indian Ocean, like the Andamans. It’s supposed to be really good for seeing lots of coral and wildlife. I’ve found Silversea’s bigger ships to be very nice too, although they aren’t nearly as big as the giants that, say, Royal Caribbean or Celebrity would sail. The good thing about Silversea is that it’s all inclusive, except for one specialty restaurant and if you want to book a private excursion thru them. The bad thing is that it does tend to be pricey: fares start at around $5k apiece for the cheapest cabin and go up from there. When we retire, Hubby & I will likely switch to much cheaper lines to save money. We’ve had good experiences with Celebrity when we sailed with them back in the day. I’ve been looking into Azamara too. Whom we sail with once we retire will depend on where we are living too. If we ex-pat like we are thinking, we may be sailing different lines.
I wouldn’t say my Viking River Cruise experience was *bad* per se so much as we just felt like the whole trip wasn’t arranged with people in our age group with our interests in mind. My mom would love it.

No, Tivoli was closed when we visited. As I mentioned in the linked post it’s one of those places we think we’d want to spend more time in than we’d get from a cruise visit so we might look at a weekend city break at some point in the future to really do it justice.

Silversea is a bit of a change up from the expedition cruises you’ve tended to do, although still as pricy, or even more so I guess. Surprised at your Viking river experience though as we’ve heard a lot of good things about them from friends and family. Not a line we’ve tried either by river or sea.

I know that Virgin completely changed their plan to relocate ships through the Suez Canal after the Mediterranean season, scrapping the scheduled down under season and replacing with Caribbean itineraries instead. Other lines will definitely follow suit if they can; not an area to book anything in for a few years at least now.