Big-O complexities This webpage covers the space and time Big-O complexities of common algorithms used in Computer Science.

Online Sea Kayaking is an online coaching website with structured online courses.

Oileáin the guide to the islands of Ireland written by David Walsh.

Kayak Design Terms & Hydrostatics definitions of form coefficients, volumetric and waterplane properties.

Paddlinglight.com is an online resource for paddlers. It offers information about lightweight canoe and kayak travel, how-to articles, trip reports, adventure stories, kayak plans, canoe plans and reviews.

Animated Knots by Grog is the web’s #1 site for learning how to tie knots. From Boating Knots, Fishing Knots and Climbing Knots to tying a tie, or even Surgical Knots — we’ve got it covered.

Paddling com created with the goal of creating the best resource for canoe and kayak paddlers and a community for paddlers to share ideas and get advice.

Canoe Ireland is recognised by Sport Ireland and the Olympic Federation of Ireland (OFI) as the governing body of the sport and recreation of paddle sport in Ireland. It is affiliated to the International and European Canoe Federations.