I had a grand day out at the seaside.

我在海边痛痛快快玩了一天。

《牛津词典》

A visitor will find rich people living in apartments or Spanish houses at the seaside or in the countryside.

游客会发现富人住在海边或乡下的公寓或西班牙式房子里。

youdao

I went to spend a few days at the seaside.

我去海边呆了几天。

《柯林斯英汉双解大词典》

The consensus at this year's meeting, here at the South Korean seaside city of Busan, is that those measures have worked.

VOA: standard.2010.06.05

Growing up beside the sea Peter found himself drawn to Martin Parr's ground breaking, and indeed controversial look at the seaside resort of New Brighton.

BBC: England Uncensored by Peter Dench

Two nights in Inverness gives you time for a wildlife cruise on Moray Firth, a tour of some of the nearby historic castles or a chance to hit the links at the seaside golf resort in Nairn.

BBC: Exploring Scotland by road

The hut at the fashionable seaside village of Abersoch on the Lleyn Peninsular was considered particularly attractive because it stands on freehold land and can be knocked down and rebuilt as a more attractive property.

BBC: Abersoch beach hut