Do Peter and the lost Boys know what navidad is?

i dont think they do. They don't seem to have time to occupy themselves por "keeping the date" here in the mainland. im sure they much rather have fun, so for all we know, i dont even think they know today is Christmas

Us lost boys definitely know what navidad is, we just don't know when until one día we wake up and there's a few new stuff placed por each of our hammocks, like what happened yesterday. I guess Father navidad knows where we are even if we're lost :)