A few days in Yogyakarta (Indonesia)

If you are intending to visit Java -the most populated island in Indonesia- it is worthwhile enough to spending a few days in Yogyakarta, a city in the center of the island. From there, you can make wonderful 1-day excursions. For example it is very recommended to a visit to Borobudur (a 9th-century Buddhist Temple) is highly recommended, and likewise to Prambanan (a 9th-century Hindu Temple)  (parentheses work better than em-dash in this situation). Also Yogyakarta has an interesting atmosphere, especially/particularly Malioboro Street, a crowded 2-km avenue where you can buy handcrafted souvenirs, eat traditional food and enjoy and listening from to live music. And If you like scuba-diving don't miss a trip to Parangtritis, a beautiful beach 40 km from the city.

A few days in Yogyakarta (Indonesia)

A further point I forgot ...

If you are intending to visit Java - the most densely populated island in Indonesia ...

If you are intending to visit Java - the most populous island in Indonesia ...

populated - normally we say

1. 'most heavily populated' or

2. 'most densely populated'

but you can also say

3. 'most thinly populated'

4. 'most sparsely populated'

Here is a sentence from Wikipedia:

With a population of 143 million, Java is the world's most populous island, and one of the most densely populated places in the world. Java is the home of 57 percent of the Indonesian population. The Indonesian capital city, Jakarta, is located on western Java