Wind and water conditions
On the Kupa, from river kilometre 0 at the Sava confluence to kilometre 5, navigation is prohibited when the Crnac gauge reaches +710 cm or higher (NN 94/2026, articles 12.08–12.09). Do not launch in those conditions. A lower reading does not establish safe conditions: check current, obstacles, traffic, access and harbourmaster notices; wear a buoyancy aid.
Markers and other users
Respect channels, swimming areas, harbours, other craft and local restrictions.
Protected areas
Do not land in prohibited or fragile areas; reserves may require permission.
Equipment
Use the required buoyancy equipment and follow the operator’s navigation limits.