Isaiah 59:18 According to their deeds, so will he repay, wrath to his adversaries, repayment to his enemies; to the coastlands he will render repayment.
Ezekial 26:18, 1918 Now shall the isles tremble in the day of thy fall; yea, the isles that are in the sea shall be troubled at thy departure. 19 For thus saith the Lord God; When I shall make thee a desolate city, like the cities that are not inhabited; when I shall bring up the deep upon thee, and great waters shall cover thee;
Zephaniah 2:5 Woe unto the inhabitants of the seacoast, the nation of the Cherethites! The word of the Lord is against you, O Canaan, the land of the Philistines: “I will even destroy thee, that there shall be no inhabitant.”
Ezekiel 39:6 I will send fire on Magog and on those who live in safety in the coastlands, and they will know that I am the Lord.
Isaiah 23:6 Pass ye over to Tarshish; wail, ye inhabitants of the coast.
Note: you can also Holy Spirit to guide you in searching for other dreams and visions regarding coastlands, California etc...on Youtube. Of course always pray and ask for confirmations and peace and knowing of God's truth.