There have been many calls for lasting tributes to Hillary. The first major public tribute has been by way of the "Summits for Ed" tribute tour organised by the Sir Edmund Hillary Foundation. This tribute tour went from Bluff at the bottom of the South Island to Cape Reinga at the tip of the North Island, visiting 39 towns and cities along the way. In each venue, school children and members of the public were invited to join together to climb a significant hill or site in their area to show their respect for Hillary. The public were also invited to bring small rocks or pebbles that had special significance to them, that would be included in a memorial to Hillary at the base of Mt Ruapehu, in the grounds of the Sir Edmund Hillary Outdoor Pursuits Centre. Funds donated during the tour are used by the foundation to sponsor young New Zealanders on outdoor courses. Over 8,000 persons attended these "Summit" climbs between March and May 2008.