Today we walked across the Costa Rica border to get our passports stamped- it's a ritual every six months here.  There used to be a requirement that you stay three days on the Costa Rican side; now it's three hours.  Once CR stamped our passports, we asked them, can't we just turn around and walk back across the bridge to Panama?  The answer was NO.  So we spent a few hours eating, taking buses, and trying to spend Costa Rican change.  Then we met up with more cruisers for shopping in Panama (much more fun when there's twelve of you!) and the water taxi back to Bocas.