Despite their website saying neither rain or earthquake would stop them, we waited for them Monday, February 18 (not a holiday!), a bright, sunny day, and they didn't show. Another couple who was waiting with us that afternoon said they had been there in the morning too, at 10, and also no one showed up.
Fortunately, the timing worked out since this tour is scheduled at 2, so we walked over to the meeting point for the other free walking tour that meets in front of the cathedral at 3 and had a great time. I recommend that... FYI, they also have one in Valparaiso, where we went for a day, and it was great as well.
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