The Avoca Estuary is a relatively small, narrow tidal channel that runs from Pearse Park to Arklow Bay on the southeast coast of County Wicklow. It is the tidal mouth of the River Avoca, which flows into the Irish Sea at the town of Arklow. The estuary is essentially a channelized tidal river. Arklow Kayak Club is based at Arklow Harbour and the Avoca estuary, making it a key entry point for paddlers interested in this river system and the south Wicklow coast. The town of Arklow is divided by the river, connected by the historic Nineteen Arches Bridge, a notable landmark. The broader Avoca catchment, including the scenic Meeting of the Waters where the Avonmore and Avonbeg rivers join, is an area of natural beauty with a history of mining, though this is upstream from the tidal estuary. The Irish Sea off Wicklow is cold year-round, presenting a significant safety consideration. From October to April, a minimum of a 5mm wetsuit with boots and gloves is considered the practical minimum for paddling, with a drysuit being preferable. Cold water shock is a real hazard. By Irish law, all paddlers must wear a CE/ISO-certified buoyancy aid of at least 50 Newtons at all times. For coastal and estuary paddling, a buoyancy aid of 70 Newtons or more is appropriate. Elevated concentrations of metals, including copper and zinc, have been detected in the Avoca estuary. The estuary supports a variety of fish species, including salmon, brown trout, sea trout, eel, and river lamprey. In terms of emergency contacts, the Coastguard monitors VHF Channel 16 continuously along the Wicklow coast, and the Maritime Rescue Co-ordination Centre in Dublin co-ordinates responses for the area.