Rubina is a delta kitesurfing spot located on the Spanish Mediterranean coast, formed by river discharge into shallow coastal waters. The delta environment creates sheltered conditions with multiple channels and lagoons, characterized by choppy, variable water conditions typical of river-influenced coastal zones. The spot faces east toward the Mediterranean, making northerly winds ideal for side-shore conditions. With average wind speeds of 7.8 knots and low reliability at 13.7%, sessions are inconsistent and generally underpowered. Water temperatures average 17°C with small average wave heights of 0.65m, indicating flat-water conditions suited to freestyle and light wind practice. The shallow delta waters and soft bottom are suitable for beginners and intermediate kiters seeking safe, protected conditions without significant wave exposure. Key considerations include variable water quality due to river input, potential shallow areas and soft mud, and the need to monitor tidal influences on water depth. This spot is best approached during rare wind events when conditions align favorably.