Located in the Lost Ark universe, Naruni Island is devoted entirely to the adorable and somewhat prehistoric-looking Narunis. There isn't much to do outside acquiring Island Souls and gathering all five Mokoko Seeds.
As there is no Una's Task connected to Naruni Island, there is no use in returning here once the Island Soul quest has been finished and all the Mokoko Seeds have been acquired. The only acceptable reason to return would be to relax with some Narunis.
Exactly where is the island of Naruni located?
You'll find Naruni Island in the Procyonian Sea not far from the island nation's central Wall. Close proximity to South Vern's port (Bellion Ruins).
Hawaii's Got Style
To obtain the Island Soul for Naruni Island, you need just complete a single quest, but don't be fooled by its apparent ease. Obtaining this non-RNG token is a welcome change, however doing so may still take a few minutes.
The Environmental Researcher is located near the island's entrance, and the mission (Naruni Go!) may be obtained from him by interacting with the Narunis on the island a total of 101 times (a clear reference to 101 Dalmatians) and Lost Ark gold.
This may appear simple at first, but these critters are constantly on the run. If you want to get quest credit from talking to them, you'll need to make sure you don't lose any of them by having a bad timing window.
To Start With One Mokoko Seed
Finding the first Mokoko Seed is going to be a challenge (the only way it becomes visible is if you zoom in as far as you can while standing right next to it).
There is a secret gate in the north of the island (seen in the image above) that leads to the Mokoko Seed far earlier in the game than you'll actually encounter it.
Mokoko Seeds, Parts 2 & 3
The second and third Mokoko Seeds can't be found on any map. If you are in the middle of the southern strip of the island, and you approach the wall depicted on the left in the image above, the game will prompt you to climb it (even if there is no bouncing yellowish-gold arrow).
Both seeds are located at the top of a second wall that must be climbed after the first (right image).
Four Mokoko Seeds
The fourth Mokoko Seed can be found on the island's eastern side, where there is the most room to roam. Hiding from view in the cover of a tree and a little shrub of crimson-purple flowers.
Seed No. 5 of the Mokoko
The last seed is located a little way north of the fourth Mokoko Seed, likewise in the island's east. You'll need to keep your eyes open because it's hidden from view by nearby bushes and under the canopy of a nearby tree.