I really enjoyed Puerto Madryn. I found a private tour to Punta Tombo that was wheelchair accessible! There were 7 of us, plus a guide & driver. Saw loads of penguins, guanacos, even a rabbit! It was 2 1/2 hours to get there, but IMO worth it. They even had time to take folks on a tour of Puerto Madryn, but I was exhausted by that point, so they dropped me off first at the ship. At Punta Tombo there is a boardwalk that you can access via a gravel road, so it’s best to have heavy duty wheels on your chair & not the lightweight plastic ones. My chair is made for handling any terrain, so it was fine.