In 1793, British
navigators placed a large wooden barrel here, to leave
messages and mail for homebound voyagers. A decade later it
was used for espionage during the Anglo-American naval wan.
tradition has continued until the present day, using replaced
barrels over time and it is now a way of sending postcards
added their calling cards, pieces of carved driftwood, a
practice which is accepted unofficially by the park.