Lyttelton Harbour / Whakaraupō is a significant coastal harbour located on Banks Peninsula near Christchurch. This saltwater harbour is approximately 15 kilometres in length from its narrow entrance to the settlement of Teddington at its head. The harbour occupies the erosion caldera of an ancient volcano, with the steep sides forming the Port Hills along its northern shore. This geological origin creates a distinctive, sheltered basin-like environment. For paddlers, the harbour offers a mix of open water and intricate shoreline. Access points for launching and landing include public sites such as Lyttelton marina, which has a sealed access point suitable for foot and vehicle. Other potential launch areas are found at settlements like Diamond Harbour. The harbour is a working port, so paddlers must anticipate significant commercial ship traffic, especially near the entrance and the port facilities of Lyttelton township. Recreational boat traffic is also present. The narrow harbour mouth can experience strong tidal currents and wind-against-tide conditions, requiring careful planning. Paddlers should consult local tide tables and nautical charts, as the tidal range influences currents throughout the harbour. Winds can funnel down the length of the harbour, creating fetch and building chop, particularly in the central and eastern basins. Weather conditions can change rapidly, and the marine environment demands respect for adverse sea states. Notable destinations for day trips include Quail Island, which features a loop track and a hut, and Ripapa Island Historic Reserve on the southern shore. Ripapa Island, which holds significant cultural and historical importance for Ngāi Tahu, is only accessible by private boat or kayak. Visitors to Ripapa Island must respect its tapu status, with eating and drinking restricted to designated areas. The harbour's shores offer walking tracks, and the historic port town of Lyttelton hosts a weekly farmers market. Guided sea kayaking tours operate in the harbour, often incorporating Quail Island. The water is part of a marine environment with typical coastal wildlife.