The Derawan archipelago rewards investors who treat 2027 as a planning year, not a purchase year: confirm gateway logistics through Kalimarau Airport, treat Second Home and Golden Visa pathways as context rather than a plan, and sequence an inspection trip around real boat schedules — because no seaplane tariff, water-landing scheme or public 2027 timetable is confirmed as of September 2026.
Berau Regency’s Kalimarau Airport (IATA: BEJ), in Teluk Bayur district, is the documented gateway to Derawan, Maratua, Kakaban and Sangalaki — a 2019 Liputan6 report already described it as the tourism gateway to those islands, and nothing in the intervening years has replaced that role. Investors fly in via Balikpapan or Tarakan, then transfer by road and sea. That two-leg journey is the first fact any eco-resort or liveaboard due-diligence trip has to plan around, because the islands themselves have almost no fixed infrastructure to fall back on if a boat is delayed.
What Makes the Derawan Corridor Worth an Investor’s Site Visit?
The corridor is marketed as Borneo’s manta and turtle destination, anchored by three distinct sites. Kakaban holds a landlocked lake with four species of non-stinging jellyfish and the Kehe Daing Lagoon. Maratua offers Dolphin Point, a turtle point, and the Halo Tabung Cave and Blue Lagoon. Sangalaki has Manta Ray Point and a turtle conservation centre. Gusung rounds out a fifth-island hop on many itineraries.
Local authorities have cited a Maratua visitor target of roughly 30,000 for 2026, and a 2026 famtrip specifically targeted Malaysian and Singaporean dive centres — both signals of a corridor actively courting international demand rather than one already saturated. Berau’s local administration is also upgrading waste systems with tourism goals attached, which matters directly to eco-resort site selection since waste and water infrastructure are usually the first constraint a resort operator hits on a remote island.
None of this is a market-size claim or a forecast. It is a description of what is documented as of September 2026, and investors should treat it as a starting point for their own inspection, not a substitute for it.
Which Visa Pathways Are Investors Discussing for 2027?
Indonesia’s visa ecosystem includes several categories relevant to longer stays tied to investment planning: the e-VOA and B211A for shorter visits, the E33 Second Home visa, the E33G remote-worker visa, and the Golden Visa for larger capital commitments. These are mentioned here only as context for how investors are structuring longer due-diligence presences in Indonesia — not as guidance on which category fits a given investor, and not as legal or immigration advice.
Anyone weighing residency or investment-linked visa routes should confirm current thresholds and requirements directly with Indonesian immigration counsel before committing to a category. A site inspection trip itself, arranged as part of a corporate charter to Derawan for a delegation, typically runs on ordinary visitor entry rather than any investment visa category — the two are separate questions and should not be conflated.
How Should an Inspection Trip Be Sequenced by Air and Boat?
The corridor’s transfer times are documented closely enough to plan a realistic itinerary, though schedules shift with weather and tide. The table below reflects verified benchmarks as of September 2026.
| Leg | Mode | Documented duration |
|---|---|---|
| Kalimarau Airport to Tanjung Batu | Road | About 2–2.5 hours (one itinerary cites 2.5–3 hours) |
| Tanjung Batu to Derawan | Speedboat | About 30 minutes |
| Tanjung Batu to Kakaban | Speedboat | About 1 hour |
| Tanjung Batu to Maratua or Sangalaki | Speedboat | About 2 hours |
| Door to Derawan jetty (via Berau) | Combined | Roughly 3 hours total |
| Tanjung Redeb pier to Maratua | Public speedboat, ~10:00 departure | About 2.5 hours |
| Tanjung Redeb harbour to Maratua, Sangalaki or Kakaban | Boat, first departure 08:00, last 16:00 | About 2 hours |
| Derawan to Kakaban | Speedboat | About 1 hour |
Maratua is the only island in the group with an airstrip, served by Wings Air roughly twice weekly as of September 2026. Derawan, Kakaban and Sangalaki have no airport at all and are reached only by boat. A resort operator near Green Nirvana Resort has described the archipelago as reachable “by boat or small airplane” once a traveler lands at Kalimarau, which confirms that small-aircraft arrivals happen in practice — but no source names a seaplane operator, a designated water-landing site, a formal water aerodrome, or any government priority status for water landings anywhere in East Kalimantan. Anyone planning a seaplane leg into the archipelago should treat it as subject to operator approval, authority permits and conditions on the day, not as a scheduled service, since no designated water aerodrome is documented as of September 2026.
Because the last public boat departures from Tanjung Redeb run around 16:00, a same-day return from Maratua or Sangalaki after a full day of site meetings can be tight. Investors visiting more than one island usually need at least three full days on the ground, plus a buffer day for weather.
What Questions Belong on a Due-Diligence Checklist?
Pricing in the corridor comes entirely from private operators, not official tariffs, and figures vary by season and group size. The table below lists benchmarks investors can use to sanity-check quotes they receive directly — not a rate card to rely on.
| Reference point | Figure | Source date |
|---|---|---|
| Indonesia Juara Derawan package (min. 2 travelers, April–November season) | From USD 281 per person | Page dated 2026-08-05, updated 2026-08-17 |
| Open Trip Derawan 3D2N via Berau, deposit | IDR 500,000 per person | Updated 2026-04-29 |
| Scuba Junkie Sangalaki, taxi plus boat | quoted on request | As listed |
| LuxuryPhinisi Derawan charter | quoted on request | As listed |
| Seaplane charter, per-hour rate, fuel surcharge or landing fee, Berau to Derawan | Not verified anywhere | Quote on request only |
Before an inspection trip, investors should have written answers to the following:
- Which permits govern land use and construction on the specific island parcel, and who issued them?
- Is the site’s water and waste infrastructure adequate for the proposed resort or liveaboard capacity, given Berau’s ongoing waste-system upgrades?
- What is the actual transfer time and cost from Kalimarau to the site in the season the investor plans to operate, confirmed directly with a boat or charter operator rather than estimated from general benchmarks?
- Does any quoted seaplane or air-taxi option carry a named operator, insurance coverage and a confirmed landing arrangement, or is it a provisional quote pending approval?
- What conservation obligations apply near Kakaban’s jellyfish lake, Sangalaki’s turtle centre or Maratua’s dive sites, and how do they constrain footprint or guest numbers?
- Are whale-shark or jellyfish-lake sightings marketed by the site backed by an operator’s own seasonal log, since no public calendar, location tariff or regulation exists for either?
What Should Investors Watch in the Corridor’s 2027 Planning Cycle?
No public 2027 seaplane timetable or confirmed water-landing scheme exists as of September 2026. Any itinerary or pitch deck that presents one as settled should be treated as a planning scenario, not as news. The same caution applies to whale-shark and jellyfish-lake sightings marketed to future guests: both are seasonal and operator-reported, and neither should be presented to co-investors as guaranteed.
This guide is planning information only. Juara Holding Group is an independent coordination desk, established in 2015, that arranges charter logistics and inspection-trip planning with licensed Indonesian operators; it owns no aircraft or vessels and is not affiliated with any named resort, dive operator or airline referenced here. Nothing in this guide is financial, legal or tax advice, and it carries no projection of returns. Investors should verify permits, tariffs and visa requirements directly with licensed Indonesian counsel and named operators before committing capital.
Frequently Asked Questions
How many site inspection days does the Derawan archipelago realistically need?
Most groups need three to four full days: one for Kalimarau arrival and the road-and-boat transfer, one to two for on-island meetings at Derawan, Maratua or Kakaban, and a buffer day, since speedboat schedules and weather can shift departure times without notice as of September 2026.
Can investors fly directly to Maratua for an inspection trip?
Only if the schedule lines up: Maratua is the sole island with an airstrip, served by Wings Air roughly twice weekly as of September 2026. Most inspection itineraries still route through Kalimarau Airport and a speedboat, since Derawan, Kakaban and Sangalaki have no airport at all.
Do foreign investors need a special visa just to visit the islands for due diligence?
A short inspection trip typically runs on standard visa-on-arrival or visitor routes; the Second Home, remote-worker and Golden Visa categories discussed for 2027 relate to longer residency or capital thresholds, not a single site visit. This is general context, not legal or immigration advice.