The Avon-Heathcote Estuary Ihutai is the shallow tidal estuary between the Christchurch suburbs of Redcliffs, Ferrymead and South Brighton, fed by the Avon and Heathcote rivers and closed off from the sea by the Brighton Spit. Most of it drains at low tide, but a deep, sandy channel runs out past Redcliffs and Moncks Bay […]