Here's the list you need for this year.
www.costaricaticas.com/phpBB2/viewtopic.php?t=29351
This post doesn't really address the central point--How important is the holiday, and what's open/ closed? Which in turn inspires the thought, that some knowledgeable Brother or 2 Post this info at the start of the year or even make it a changeable Sticky (not the oxymoron it seems). I'm not hip enough myself but we have CR-resident Brothers who are. This chart should I believe list the big play-date holidays important to us (Labor Day, etc.) as well.