My sweetie and I are heading down to Panama in early March and are planning on spending a couple of days in Panama City, exploring the Old City, doing a canal transit, etc. then what we have heard is to head to the islands for a couple of day. San Blas? Bocas? Or ?? We are looking to relax and explore, nothing too rustic. Do each group have their own personality or are they more similar? What has been your experience?