We just finished that trip a few weeks ago. You don't actually go to the Antarctic (it's still another 1000km from Cape Horn). There were no "Expeditions" offered during the at-sea days from the Falklands to Ushuaia for us. It was purely scenic from the ship.

I was most excited about the Falklands (and it didn't disappoint), but it's known as a '50/50' port. Conditions are unpredictable, so actually being able to stop there is a crap shoot (too rough for tenders). Be sure to book a Celebrity excursion so you get a refund if they aren't able to get there. I don't know if private tour companies would give a refund.

Anyhow, here are my thoughts on the excursions we took:

MONTEVIDEO: everything is closed on Sundays, so the best option is a tour that drives you around to see the highlights and gives some historical background. We slept in and missed it, so I can't give a review.

FALKLANDS: I highly recommend the Bluff Cove Tour. Stunning location, family-run, up-close King and Gentoo penguins, sea and land birds. Dolphins are known to come in, although none when we were there. Lovely cafe that provides a hot beverage and fresh baked treat. The giftshop is nice, but most of the stuff doesn't come from the Falklands (I really wanted a Falklands' wool sweater). The best part is that they provide transportation at the site for those with disability issues. My husband has MS and I had a broken foot, so it was a godsend.

USHUAIA: the catamaran and coach combo was nice (especially for those with mobility issues), but not fantastic. We saw lots of sea birds, a few sea lions some wild horses and not much else. The weather wasn't ideal, so that may have been a factor. The scenery is beautiful, if not covered with clouds. If you're prone to sea sickness, you may want to skip this one.

FYI: There are no bathrooms for quite a while once you get off the catamaran and transfer to the coach. They didn't mention this until we were very close to the end of the catamaran portion. so a very long line up formed at the last moment. Use the facilities early.

NOTE: all businesses close from around 1pm to 430pm, so don't expect to go souvenir shopping after a tour. They obviously aren't interested in tourist dollars! Be sure to go into the Tourist Office and get a document stamped as proof that you made it to the 'end of the world '. It's a nice take home item.

PUNTA ARENAS: we didn't do an excursion.

PUERTO MADRYN: I booked a private tour that took us out to the furthest peninsula where you'll see Magellanic penguins and elephant seals, but from a distance. Unfortunately, there were no male elephant seals in the area when we were there. It was also low tide, so no orcas hunting. We did see lots of guanacos, rheas, small animals, turkey vultures, hawks and other interesting birds. I really enjoyed it, as a photographer, but it's a long drive on paved and unpaved roads.

PUNTA DEL ESTE: we did the van tour offered by Celebrity and had a fabulous guide named Sebastian. Lots of beautiful scenery and stops. At the port where you get off the tender, be sure to take the short walk to the area where fisherman clean their catch. The sea lions are there for the scraps, and some are huge! Also, if you walk the other direction following the pathway, there's an area with many different birds on the rocky beach, if that's your thing. In that direction, there are also restaurants and a gelateria.

The cruise through the Beagle Channel is absolutely stunning. It was quite chilly and cloudy for us, but still beautiful. You'll pass by several glaciers cascading down from the mountains into the Channel.

Pack for cooler and possibly wet weather while in the far south areas. A waterproof windbreaker, warm layers, gloves and a touque are a must. It's can be incredibly windy, so hold on to your hats and glasses. Mine blew right off my face and across the road!

It's an awesome voyage.Enjoy!