This weekend, June 23-24, is ARRL Field Day. Over 35,000 hams are expected to operate from parks, malls, schools, fields, canoes, rafts, beaches, strollers, etc. around the country.
More info can be found here:
http://www.arrl.org/2012FieldDay
Find a Field Day location to visit, operate, or just stand around in awe at the activities:
http://www.arrl.org/field-day-locator
