I want to go to the ocean but I don't necessarily feel like swimming.
I want to go to the beach but I don't need to get in the water.
1) I want to go to the ocean but I don't necessarily feel like swimming.
「海には行きたいけど、泳ぎたいわけではない。」
not necessarily 「必ずしもそうではない」
feel like swimming 「泳ぎたい気分」
2) I want to go to the beach but I don't need to get in the water.
「ビーチには行きたいけど海に入りたいわけではない。」
get in the water で「水に入る」この場合は「海に入る」
ご参考になれば幸いです！
日本 
