Our beaches


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Our beaches

  1. 1. Northland’s Coast and Us Matapouri Awahoa Bay, Taiharuru Our beaches
  2. 2. Where are Northland’s beaches?Nowhere in Northland is more than40 kilometres from the coast.Northland’s coast extends fromKaipara and Mangawhai Harboursin the south, to Cape Rēinga in thenorth and covers 3200 kilometresof coastline. Cape Rēinga Grab a picnic and go to the beach to enjoy the sea, sand and foreshore.?
  3. 3. What words What is a beach? come to mind when you think of your favourite Northland beach?A beach slopes from the land to the sea.It can be made up of sand, shells, pebbles or amixture of all of these. Ocean Beach Rāwene Te Paki
  4. 4. How do Northland’s beaches differ?Each beach has its own Peach Cove• colour• composition• sand movement• shape• structure Cape Maria van Diemen Poutō Compare and contrast a variety of McLeod Bay beach types.
  5. 5. Where are theHow are beaches made? biggest and smallest pieces of eroded material onSand, shell, rock, gravel and pebbles your beach? What does this tell you?are slowly eroded by wind and wavescausing them to break into smaller andsmaller pieces – a process that cantake thousands of years. Shell Rock Sand
  6. 6. How are beaches made? Parua BaySea currents carry erodedmaterial along the coast anddeposit it on the shore. Thismaterial is made up of differenttypes of sand and sediment. Mangawhai Heads Taipā Beach Throw a small branch into the sea and watch where the current takes it.
  7. 7. Why are our beaches always changing?Waves and wind are constantly reshapingNorthlands beaches. The resulting eroded materialforms different patterns and shapes. Pataua South Hold an art exhibition to show beach patterns and shapes. Waimamaku Beach
  8. 8. What beach features can beStart a photo orsketch diary to monitored for change?monitor beach change.• dune shape and height• sand formation• sand colour• marine life• plant life Bream Bay 2000 Bream Bay 2005• rock and sand pools• shell and pebble distribution
  9. 9. Why does the colour of Northland’s beaches vary? Pick up a handful of beach sand. WhatSand colour is influenced colour is it?by the minerals and things What does it appear to beit is made of. Pārengarenga made of?High silica content Harbour (White Sand)produces white sand.High iron contentproduces black sand.
  10. 10. Why else do Northland’s beaches vary? Rub different sands and sediments throughThe eroded material on your hands. Describe thebeaches comes from many difference in feel.different sources. It createsdifferent types of sand. Forexample, the fine brownsands of estuary beachesare made from silt washed One Tree Pointdown rivers or streams.
  11. 11. How does the shape of surrounding land affect beaches? Go to www.marinenz.org.nz to locate an aerialSand movement and waves map of your beach. What does this tell youare affected by shoreline about how your beachshape and structure. was shaped?Long, open, straight stretches Tutukaka Harbourallow sand to shift freely.Enclosed shorelines block andtrap sand, and reducewave movement. Baylys Beach
  12. 12. How is the look of a beach influenced by its location? Beaches in How has the look of a exposed areas Northland beach been look different frominfluenced by its location? those in more sheltered harbours and estuaries. Cape Maria van Diemen Ngunguru Estuary
  13. 13. What effect does the weather have?The weather never rests.Prevailing winds and rain are shaping beachesday and night. Ngunguru toward Bream Head Set up aweather stationat a beach and make regular observations. Hokianga Harbour
  14. 14. How does whats happening offshore affect the beach?The size and consistency of ocean swells shapebeaches. Big, slow swells create less change thansmaller, faster ones which break with more force. Observe the influence ocean swells have had on a beach. Wind and waves continually shape our shores.
  15. 15. How does fresh water flowing to the coast shape our beaches and shores?Rivers and streams carve throughbeaches and shorelines. As they swellwith rain, or dry up in summer, they alterthe shape of the shore. Stormwater Use a GIS mapoutlets can also change beach shape, of your coastalcolour and water quality. area at www.nrc.govt.nz to find out where water flowing from inland shapes the Kaeo River beach. Stormwater outlet, One Tree Point Tauranga Bay
  16. 16. Why are Northland’s beaches special to Maori?As a source of identity – a sense of place. What Maori legends or historical stories surround your beach? Maori history is closely linked to Northland’s coastline
  17. 17. Why are Northland’s beaches special to Maori? What memories do older Maori in your community have of gathering As a food basket (kete). kaimoana on your part of the coast? Kina, or sea urchinBay of Islands(photo: Destination Northland) Pārengarenga Food basket (Kete)
  18. 18. What lives on Northland’s beaches?Many living things call Northland’s beaches home• birds Oystercatcher Flax• crustaceans Flax• fish• insects Put creatures Little Blue• people back where you penguin found them on the• plants beach. What else Mussels can you do to help• shellfish look after beach creatures?
  19. 19. What rare and endangered species are found on or around our beaches?• Northland is home to many coastal species found nowhere else in the world• Northland is also home to many endangered species Kaka What can you do to help protect the rare and Oyster catchers at Ruakaka Beach endangered species living on or around a Northland beach? Maui’s dolphin Pōhutukawa
  20. 20. What threatens our native beach creatures? • careless human activity • climate change • excess shellfish gathering • extreme weather Sediment from road • habitat destruction development, Waikaraka • introduced pests What are • pollution people in your area doing to • accumulation of many minimise beach threats? small effects How can you help?
  21. 21. What threatens our native beach plants? Write a newspaper article about a local• careless human activity beach ‘hero’ who has been caring for a• climate change Northland beach.• coastal development• introduced weeds and plants• erosion• extreme weather Unfenced stock on beaches• habitat destruction Unfenced stock in water• animals on the beach• accumulation of many small effects
  22. 22. What does Northland Regional Council do to help? How does the council look afterThe Northland Regional Council (NRC) our coast? Go to www.nrc.govt.nzhelps looks after beaches throughout to find out.the region. Beach profile surveysNRC coast patrol boat Safe driving on beaches
  23. 23. What does Northland Regional Council do to help? Anywhere, anytime, Northland Regional Council staff are out there playing their part. Coastal pest plant removal Oil spill trainingCoastal sampling
  24. 24. What can we do to help look after Northland’s beaches?There are lots of ways we can help look afterNorthland’s coast.Check out websites – including the following –for ideas www.nrc.govt.nz Build your own list of what can be done www.doc.govt.nz to look after Northland’s coast. Tokerau Beach CoastCare
  25. 25. Who helps looks after our beaches?CoastCare is a partnershipbetween the Northland RegionalCouncil, community, iwi, districtcouncils and the Department ofConservation. All are workingtogether to protect and restoreour region’s beaches. Check out what your local CoastCare group is doing to look after your beach at www.nrc.govt.nz/CoastCare
  26. 26. Northland’s Coast and Us Awahoa Bay, Taiharuru Our beaches
  27. 27. have you clicked on yet?www.nrc.govt.nz