The importance of flying the flag: rules and traditions for sailors in Istria

The flags and their meanings
When entering a new harbour or passing through international waters, it is important that you present yourself and your boat correctly. Flags are not only used for orientation, but also for communication. Three types of flags are particularly important: the national flag, the host country flag and the signalling flags.
- The national flag: The national flag should always be hoisted clearly visible at the stern of the boat. It indicates which country the boat comes from and is a kind of identification mark. If you are sailing a boat under a flag other than that of your home country, you should fly the flag of the flag state. This means that the national flag is only hoisted if the boat is also registered in the corresponding country.
- The host country flag: If you are leaving international waters and entering the territorial waters of another country, a so-called host country flag should be hoisted on the starboard semaphore mast. For Istria, which belongs to Croatia, this is the Croatian flag. It shows respect for the host country and signals to the coastguard and other authorities that you recognise the local regulations. Important: The host country flag should always be clean and in good condition. A worn flag can quickly be perceived as disrespect.
- Signalling flags: These flags are used for communication at sea and have different meanings depending on the colour combination and arrangement. Signalling flags are not used so often in the leisure sector, but they are important when it comes to emergencies or specific concerns. The quarantine flag ‘Q’ (a yellow flag), for example, indicates that you need an entry check before you are allowed to enter the harbour. So if you are travelling to Istria from a non-EU country, this flag should be hoisted first.
Traditions and history of flag flying in Istria
Istria looks back on a long maritime history characterised by seafarers, fishermen and traders. The tradition of flying flags has deep roots here. As early as the Middle Ages, ships were equipped with flags to recognise each other and indicate which port they came from. This tradition has developed over the centuries and still characterises the use of flags in the region today.
In Istria, it is considered a sign of honour and respect to fly the flag of the host country and to respect local traditions. Older sailors and fishermen in particular will be keen to ensure that your boat is appropriately flagged and that you appreciate the maritime culture.
Rules for flying the flag: what you should bear in mind
When should the flag be set?
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