The Night Journey - 17:66 Your Lord is He Who sails the ships in the oceans that you may seek His Blessings. He is Most Merciful towards you.
The blessings of our Lord in the sea:
The Table Spread/5:96 It is lawful for you to hunt the animals of the sea and to eat them. As sustenance for you and for travelers. Land hunting is forbidden to you while you are in ihram. Listen to Allah, before Whom you will be gathered.

The Bee/16:14 He has made the sea at your command; from it you eat fresh meat, and from it you extract ornaments for clothing and jewelry. And you see the ships sailing across the sea. So you seek His favor and perhaps you will thank Him.

Originator/35:12 The two seas are not equal to each other. This one is fresh and sweet and soft to drink, and that one is salty and bitter. From each of them you eat fresh meat and extract jewels to wear. You will see ships splitting it, seeking His favor. Perhaps now you will give thanks.

The Most Gracious/55:19 He has released the two seas; they meet each other.
The Most Gracious/55:20 There is a barrier between them; they do not transgress and interfere with each other.
The Most Gracious/55:21 Which of the Blessings of your Lord can you deny?
The Most Gracious/55:22 Pearls and coral come out of both of them.