Turkey and other countries are starting to normalize, marine life 'becomes normal with the arrival of the summer and warm. Many yachts, commercial boats, sailboats and boats on the Aegean coast enjoy the meeting with the sea. In the sea, daytime cruises continue along with night cruises. Night cruise at sea is a situation that needs more attention and requires more experience despite the daytime cruising. Nautica Goods official Eren Budaklı sid that ’When using a boat at night, the captain must pay attention to all auxiliary lights and observe them. These lights are extremely important to take precautions for possible problems. If we talk about what light means and how it should be interpreted’. 

• If you see both the red and green lights of the other boat at the same time while cruising, this indicates that you are entitled to this road. 
• If you only see a white light, this indicates that a boat is approaching you from behind or you are approaching a moored boat. In this case, the boat that has the right of way is the approached boat and you have to pass through the port or starboard part of this boat. 
• If you see a white light and a red light, that boat you see is the boat that has the right of way. In this case, we must either turn to the starboard or go behind or let it pass you. 
• If you see the green and red lights together and you see a white lighthouse on it, this means that you are approaching another boat from the bow. When this is the case, both sides are the boat that gives way. 
• If you only see the red or green light, this time you are approaching a sailing boat. When this is the case, you are the boat that gives way. 
• If you see only one of the red or green lights. Again, in this case, you will be the boat that gives way. The most important thing you should know about sailboats in the sea at night; If it is not in a narrow channel or not growing, the sailboat always has the right to the road.