In hirigana: わたしは ともだちと いっしょに うみへ いきました。
In romagi: Watashi wa tomodachi to issho ni umi e ikimashita.
How to pronounce: "Wah-tah-shee wah toh-moh-dah-chee toh eesh-oh nee oo-mee eh ee-kee-mah-shtah."
"Simply say "During the holidays the family went to the beach."
ikimashita
tomodachi
Tomodachi
tomodachi
Best Friend (Shinyuu)
''ASEDREGALLIO'' IS BEST FRIEND IN JAPANESE MAN
Tokubetsu no Tomodachi
The sentence "I went to a friend's house" is correct, meaning you traveled there. Another synonym is that you "visited" your friend.
kazan ni ikimashita
you don't you say come to the beach = hamabe ni kitte kudasai or a little less polite hamabe ni oide
In English, you can say 'I have a Japanese friend'.