Am thinking of spending 1 1/2 to 2 days in PEI in May. Appreciate that is no time at all. Will arrive by ferry and leave by bridge so will see some of the southern coastal scenery. Am thinking a wander around Charlottetown and a drive out to a great beach (not to sun-bathe in May!) Cavendish or Montague perhaps? We will only get a "feel" of PEI but is there anything else we really should see?