Riung 17 Islands Marine Park: Boat Tours and Tips

Riung 17 Islands Marine Park is the north coast of Flores’ best-kept secret: a protected cluster of small islands with white-sand beaches, shallow coral gardens, and a mangrove island where thousands of flying foxes roost in broad daylight. As of 2026, a full-day private boat charter from Riung harbor typically costs around IDR 700,000 to 1,500,000 for the whole boat, making it one of the most affordable island-hopping days anywhere in Indonesia. The park sits about 70 km north of Bajawa, which means it slots neatly into the classic Flores overland route with just one extra day.

Most travelers crossing Flores rush along the Trans-Flores highway from Labuan Bajo to Kelimutu and never turn north. That is exactly why Riung still feels the way Komodo did decades ago: quiet harbors, wooden boats, and islands you often have entirely to yourself. This guide covers what the marine park actually is, what a boat tour costs, where the snorkeling is best, and how to build Riung into your itinerary without wasting a day.

What Is Riung 17 Islands Marine Park?

The park’s official Indonesian name is Taman Wisata Alam Laut Tujuh Belas Pulau — the “Seventeen Islands Marine Recreation Park.” The name is partly patriotic: locals will tell you the archipelago actually contains more than seventeen islands and islets, but the number was fixed at 17 in honor of Indonesia’s Independence Day on August 17. The islands scatter across a shallow, sheltered bay off Riung, a small fishing town in Ngada Regency on the north coast of Flores.

What makes Riung 17 Islands special is the combination of three things in one compact area:

• Uncrowded beaches and coral. Islands such as Rutong, Tiga, and Lainjawa have powdery white sand and house reefs starting a few meters from shore. On a typical weekday you may share the entire park with two or three other boats.
• The flying fox colony on Ontoloe. The largest island in the park shelters a mangrove forest where thousands of large fruit bats hang from the branches — one of the most reliable places in Indonesia to see them at close range from a boat.
• Calm, protected water. Because the bay is shielded from open ocean swell, conditions are gentle enough for children, nervous swimmers, and first-time snorkelers during the dry season.

The area is a protected conservation zone, so visitors register at the harbor and pay a modest entrance fee. Local rangers and boat crews are serious about anchoring away from coral, and the reefs are healthier for it.

How Much Does a Riung 17 Islands Boat Tour Cost?

There is no big-ticket tour industry in Riung — you simply charter a local wooden boat at the harbor for the day, usually arranged the evening before or on the morning itself. As of 2026, indicative prices look like this:

Treat these figures as a planning guide rather than a quotation: fuel prices, group size, the number of islands you want to visit, and the season all move the final number, and rates are agreed locally. The larger point stands, though — a private boat day in Riung 17 Islands costs a fraction of a comparable charter in Komodo National Park, and because prices are per boat, families and small groups get exceptional value. When Riung is built into the Komodo Luxury Flores overland tour package, the boat, entrance fees, gear, and beach lunch are arranged in advance so you are not negotiating on the dock at 7 am.

Where Are the Best Snorkeling Spots?

Your captain will suggest a route based on the day’s wind, but these are the stops worth asking for:

• Rutong Island. The park’s postcard stop — a low grassy hill with a short walk to a viewpoint over turquoise shallows, plus a good house reef off the beach. Most boats stop here for the beach lunch.
• Tiga Island. Sloping coral gardens with dense fish life in two to six meters of water — the most consistent snorkeling in the park and forgiving for beginners.
• Lainjawa Island. Quieter than Rutong, with a long white-sand spit and patch reefs on its sheltered side. A good second swim stop when Rutong has other boats.
• Bampa Island. A small islet with clear water over hard coral; visibility here is often the best in the bay on calm mornings.

Expect reef fish in numbers, healthy hard coral, sea stars, and the occasional turtle rather than big pelagic action — Riung is about relaxed, easy snorkeling in warm, flat water, not drift dives. Visibility is best from April to November, matching Flores’ dry season. From November to March, rain runs off into the bay, wind picks up, and some captains will not go out at all, so plan Riung as a dry-season stop.

The Flying Foxes of Ontoloe Island

Every boat tour ends — or should end — with a slow cruise along the mangroves of Ontoloe, the park’s largest island. Thousands of flying foxes, large fruit bats with wingspans approaching a meter, roost in the mangrove canopy through the day. As your boat approaches, clusters of them lift off and wheel over the trees before settling again: one of those wildlife moments that costs nothing extra and stays with you longer than any beach.

Two tips make it better. First, ask your captain to cut the engine and drift along the mangrove edge rather than pushing close — the colony stays calmer and you see far more natural behavior. Second, schedule Ontoloe as your final stop around mid-afternoon, when the light is warmer for photos and the bats are beginning to stir before their dusk departure to feed on the mainland.

Riung also has a curious land story: locals speak of the mbou, a large monitor lizard found in the hills behind town that resembles a smaller Komodo dragon. Sightings are not something any honest operator can promise, but it tells you how wild this corner of Flores still is.

How Do You Add Riung to the Flores Overland Route?

The classic overland journey runs Labuan Bajo → Ruteng and Wae Rebo → Bajawa → Ende → Moni for the Kelimutu crater lakes, in four to six days along the Trans-Flores highway. Riung sits 71 km north of Bajawa on a side road — roughly a 2.5 to 3 hour drive each way, as the road is winding and sections remain rough. The cleanest way to fit it in looks like this:

In short: adding Riung turns a five-day crossing into six or seven days. Because Flores has airports at both ends of the route — Labuan Bajo (LBJ) in the west and Ende toward the east — you never have to double back. Accommodation in Riung itself is simple guesthouses and small bungalows; comfortable, friendly, and basic, so set expectations accordingly for that one night.

If your dates are fixed and you would rather not puzzle over drive times, the private Flores tours referenced here run this exact routing with an English-speaking driver-guide, and can pair the overland journey with a Komodo boat trip at the Labuan Bajo end — dragons and pink beaches first, then the quiet islands of Riung as the crowd-free counterpoint.

Practical Tips Before You Go

• Go in the dry season. April through November offers flat seas, the best visibility, and reliable boat departures.
• Bring cash. There are limited banking facilities in Riung — carry enough rupiah from Bajawa or Ende for the boat, fees, meals, and lodging.
• Pack reef-safe sunscreen and a rash guard. Shade on the boats is limited and the equatorial sun is intense on the water.
• Start early. Boats leaving by 8 am get glassy morning water for snorkeling and beat the afternoon breeze.
• Respect the conservation rules. No touching coral, no feeding fish, and let the crew handle anchoring at designated spots.

Plan Your Riung and Flores Journey With Komodo Luxury

Riung rewards travelers who plan it properly: one extra day, arranged in the right order, and you add a private-island boat day and a flying fox colony to an itinerary that already includes Wae Rebo, the Ngada villages, and Kelimutu. Komodo Luxury designs that whole journey end to end — overland route, Riung boat charter, and a Komodo trip out of Labuan Bajo — as one seamless booking. Komodo Luxury, part of Juara Holding Group and operating from Bali across Indonesia since 2015, plans Flores routes week in, week out and knows which combinations actually work on the ground.

Having read the Riung island-hopping detail above, most travellers want one point of contact rather than five, and that contact sits behind Komodo Luxury.

Riung’s seventeen islands are a quieter proposition than Komodo, and most travellers who come this far east do both on one trip. The Komodo day formats have their own page on Komodo boat tours. Multi-night runs, which let you reach the outer anchorages before the day boats arrive, are at Komodo liveaboard departures. For a private hull on the Labuan Bajo side, current classes and rates are at Labuan Bajo yacht rental.

Choosing the Best Time and Way to Explore Riung's Islands

Timing is crucial for a rewarding day among the 17 islands. The dry season, from April to November, offers calmer seas and clear underwater visibility, ideal for a day on the water here. During these months, sea conditions are gentle—especially important if you are travelling with children or novice swimmers. Keen divers will find the calmer period best, though dive facilities in Riung remain basic compared to Komodo.

Check a local forecast close to your dates. December to March brings more rain and rougher water, and the crossings between islands feel it. Bring your own mask and fins if you can. Rental gear in Riung is inconsistent, and a leaking mask ruins a good reef. Early morning starts improve your chances of clear waters and uncrowded beaches.

Accommodation in Riung is simple, so reserve ahead online or by phone during July–August and Indonesian holiday periods, when the limited guesthouses fill up. There is no luxury lodging—choose based on strong reviews for cleanliness and ease of arranging a boat trip from your lodging. Some homestays can help organise a snorkelling trip directly.

While the main draw is the snorkelling, those seeking variety should consider combining Riung with Pulau Babi, for its white sand and turtle sightings, or extending west to Komodo for world-class diving. Flores boat trip tips include bringing sun protection, water, and snacks, as facilities on the islands are non-existent. Expect rustic charm over tourist infrastructure, and plan for self-sufficiency to get the best out of the snorkelling here.

Tell Komodo Luxury your dates and travel style, and they will send a day-by-day proposal with transparent pricing. Message Komodo Luxury on WhatsApp at +62 811 3823 875 or email sales@komodoluxury.com to start planning your Flores overland and Riung 17 Islands adventure.

More on this site: Labuan Bajo To Komodo, Diving Komodo, Snorkeling in Komodo