3 sentences

1. 这个海岛的风景非常迷人。

   zhè gè hǎi​dǎo de fēng​jǐng fēi​cháng mí​rén.

   The scenery of this island is very charming.

   Source: Dong Chinese Dictionary

2. 我们要去这片群岛度假，体验当地的海岛文化。

   wǒ​men yào qù zhè piàn qún​dǎo dù​jià, tǐ​yàn dāng​dì de hǎi​dǎo wén​huà.

   We are going on vacation to this archipelago to experience the local island culture.

   Source: Dong Chinese Dictionary

3. 他们全家计划今年夏天去印度洋上的海岛度假。

   tā​men quán jiā jì​huà jīn​nián xià​tiān qù Yìn​dù​yáng shàng de hǎi​dǎo dù​jià.

   The whole family plans to vacation on an island in the Indian Ocean this summer.

   Source: Dong Chinese Dictionary