have the dry/split ends trimmed off
Deep condition using a hair mask, avoid exposing hair to direct sun, use less heat (blow dryer, curling iron, straightener.) If you have split ends or they are very dry, trim them.
I was seaside last month for about 7 days, and between the sun, the reflexion of the sun from the ocean, and the water quality (I didn't swim in the ocean or in the pool) it dried up my hair fast.
Quoting kmqw229:Try to use a blowdryer less.
Quoting kmqw229:Deep condition
Quoting michiganmom116:Deep condition