Common loanword for a sandy seashore, often used in leisure contexts. More casual than 海岸.
夏休みにビーチで泳いだ。
I swam at the beach during summer vacation.
このビーチは波が静かで、家族連れに人気がある。
This beach has calm waves and is popular with families.
We went to the beach as a family during summer vacation.
The children were swimming energetically at the beach.
I like to relax lazily at the beach during vacation.
beach towel