这里的海水特别清澈，是潜水和看珊瑚的好地方。

Zhèlǐ de hǎishuǐ tèbié qīngchè, shì qiánshuǐ hé kàn shānhú de hǎo dìfang.

The seawater here is especially clear; it’s a great place for diving and seeing coral.

她去年去海南学会了潜水，还拍了很多海底照片。

Tā qùnián qù Hǎinán xuéhuì le qiánshuǐ, hái pāi le hěn duō hǎidǐ zhàopiàn.

She learned to dive in Hainan last year and took many underwater photos.

因为身体原因，医生建议他不要参加深海潜水活动。

Yīnwèi shēntǐ yuányīn, yīshēng jiànyì tā búyào cānjiā shēnhǎi qiánshuǐ huódòng.

Because of health reasons, the doctor advised him not to take part in deep-sea diving activities.