Сёрфинг По-Чёрному

Aloha , the other day I made a few inscriptions “Сёрфинг по чёрному”. I do not know how to correctly translate the inscription into English. (surfing on the black sea). For my new friend @blackseasurfer . You know the most difficult thing for me is to work with the Cyrillic alphabet. Even though it’s my native alphabet and language. I have great difficulty writing Cyrillic inscriptions. It is always a challenge for me. My sketches for creating inscriptions.
Now in Russia, surfing is developing very fast. And there are a lot of schools for learning surfing.