Questions about fitness
so I have been asked to join a 1/27 Quark trip to the Antarctica. I have recently been advised I need a knee replacement/ also have a hip replacement on same side. Overall I consider myself quite healthy. Good weight active, cross country ski day 12 miles this past winter, could hike 4,000 vt/ten mile days a year ago. Still bike 40 mile days..... going to be 70 this fall. But now with this knee feeling a bit creaky and concerned about the trajectory of my fitness/knee mobility. Trip group has a photography focus. What's it like scrambling out of zodiacs? How much hiking? I still walk a bit but am biking more just to minimize knee "wear out" till I decide when I might have the replacement down. Curious as to the groups on board and how I might fit in.