The Most Beautiful Islands to Spend Your Summer Vacation

2. Palawan, The Philippines
This coveted island is often raved about, and it’s no wonder why – limestone peaks and a stunningly clear sea offers a unique ecosystem and the best scenic driving ever. These jungle islands are home to one of the 7 natural wonders called Puerto Princesa Subeterraean River, one of the longest underground rivers in the world, and is only reachable via a limestone cave system.