Easily the best thing to do in Punta Arenas. We did the larger ferry boat run by Comapa - 2 hours on the boat each way, plus an hour on the island.
The boat was really comfortable, despite what it looks like from shore one side of the ferry is like a train carriage and has similar seats, and even some with tables.
The penguins were great, and we loved the experience even though it was windy as hell!
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