Split 1700 is a traditional regatta of the cadet class Optimist organized by the Split Sailing Club. The regatta has a long tradition of being held for over 35 years under the name Split 1700, and as its name suggests, celebrates the City of Split and its long tradition of existence.
The regatta is on the HJS competition calendar, and is often part of the official selection regattas for the selection of the cadet national team.