Tauranga is the principal city of the Bay of Plenty. Well-planned parks and gardens were left by 19th century missionaries for today’s residents and visitors to enjoy. Sprawling along the sweeping bay, Tauranga is a popular summer resort. Visit the mission house and walk around the 1860s campsite of the military, situated on a cliff overlooking the harbor. Other attractions include the Waitomo Caves, a vast underground network of water-sculpted, cathedral-like limestone grottoes, big-game fishing and scuba diving, and spectacular flightseeing excursions over White Island, New Zealand's most active volcano. The area of the Bay of Plenty is blessed with a good climate and fine beaches. Other sights include Monmouth Redoubt, The Strand, and Mount Maunganui.