A Cessna 208B Grand Caravan EX Amphibian typically flies Indonesian charters with 6 to 9 passenger seats filled rather than its full 9-to-14-seat cabin, because amphibious floats and water-landing rules eat into the useful load Textron Aviation publishes for the wheeled aircraft. Expect your operator to quote an exact seat count and baggage allowance once they know your route, water depth and group weight.
How Many Passengers Does a Cessna Grand Caravan EX Amphibian Seat?
Textron Aviation’s published specifications for the Grand Caravan EX describe a standard single-pilot configuration seating 9 passengers, with a useful load above 3,500 pounds (roughly 3,505 lbs) on the wheeled aircraft. A high-density interior, available under a FAR Part 23 waiver, can raise that to 14 occupants including the pilot.
Neither of those numbers is what shows up on floats. Once Wipaire’s amphibious float kit goes on, the airplane carries roughly 1,142 pounds more empty weight than it does on wheels, according to Wipaire’s own published conversion data, because the floats replace the standard landing gear rather than simply bolting on top of it. Flying Magazine’s review of the amphibian-equipped EX describes it as capable of carrying around 10 passengers for direct beachside delivery, which lines up with how Indonesian operators plan seating today: below the wheeled aircraft’s 14-seat ceiling, and usually below its 9-seat standard cabin too, once fuel and gear are loaded for a real charter.
Wipaire also received FAA approval to pair its newer Wipline 8750 floats with the Grand Caravan EX at a higher gross weight of 9,062 pounds, a certification that specifically targets this airframe rather than older, less powerful Caravan variants. That extra structural headroom is part of why the EX, rather than the original 208B Caravan, is the version operators are bringing to Indonesian water bases.
Seating Configurations at a Glance
| Configuration | Typical Occupants | Source Basis |
|---|---|---|
| Standard wheeled cabin | 9 passengers + 1 pilot | Textron Aviation published specification |
| High-density wheeled cabin | Up to 14 occupants (Part 23 waiver) | Textron Aviation published specification |
| Amphibian, beachside/charter use | Around 10 passengers | Flying Magazine reporting on the amphibian-equipped EX |
| Amphibian, Indonesian charter practice | Typically 6 to 9, operator-confirmed per flight | Weight-and-balance recalculated per trip; not a fixed published figure |
Treat the bottom row as the honest answer for planning purposes. No Indonesian operator publishes a fixed water-configuration seat count because it changes with fuel load, water conditions and the individual weights of the people flying that day.
How Much Baggage and Gear Can You Bring?
Baggage space on a Caravan-family aircraft splits between a small nose locker, an aft cabin baggage area and whatever floor space remains once all seats are filled. On floats, that space competes directly with the extra structural weight of the amphibious gear, so operators tend to ask for a declared bag list before they finalize your seat count rather than quoting a blanket kilogram limit up front.
This matters more for water-landing charters in Indonesia than for a standard airport transfer, because dive, surf and camera gear each carry hidden weight and, in some cases, hazardous-goods restrictions that a normal suitcase does not.
Gear Checklist: What to Declare Before You Fly
| Item | Typical Concern | Declare Before Boarding? |
|---|---|---|
| Surfboards (longboard/shortboard) | Length exceeds standard baggage door and cabin stowage | Yes — confirm board length and quantity |
| Scuba/dive cylinders | Pressurized gas; must usually fly empty or depressurized | Yes — always, well before the trip |
| Camera cases (hard Pelican-style) | Dense weight in a small footprint; can throw off balance | Yes — state weight, not just “a camera bag” |
| Soft duffel/personal bag | Standard cabin or aft-locker item | Only for total weight tally |
| Snorkel/fins/wetsuit | Light but bulky; competes for floor space | Recommended, not always required |
| Drone with lithium batteries | Battery-carriage rules apply on small aircraft | Yes — always |
Anything on the “yes” rows above should go into your operator’s manifest before departure day, not at the dock. A Grand Caravan EX amphibian charter desk will usually ask for passenger weights, bag weights and gear type together, then confirm the seat and baggage split for your specific flight rather than promising a fixed number in advance.
Why Does Water-Landing Weight-and-Balance Cut Into Payload?
A wheeled aircraft’s useful load figure assumes wheels, brakes and a fixed empty weight. Swap that for amphibious floats and three things change at once: empty weight rises by roughly 1,142 pounds per Wipaire’s published conversion figures, the center of gravity range shifts because the floats sit further from the aircraft’s centerline than main wheels do, and the aircraft now needs enough reserve buoyancy and step clearance to land and take off cleanly on water.
Pilots recalculate weight-and-balance for every water leg, not once per aircraft, because passenger and fuel loads change trip to trip. A short hop with light fuel and modest gear might comfortably carry more people; a longer charter with full fuel for range, plus dive or surf equipment, will usually trade a seat or two for that fuel and gear weight. This is standard practice for amphibious operations everywhere, not something specific to Indonesia, but it explains why quoted seat counts for Indonesian water-landing charters sit below the wheeled aircraft’s published passenger ceiling.
How Do Tropical Heat and Humidity Affect Usable Payload?
Hot, humid air is less dense than cool, dry air, and a turboprop like the PT6A-140 that powers the Grand Caravan EX produces less thrust in thinner air. That means longer takeoff runs and reduced climb performance on a hot Indonesian afternoon compared with a cool morning, which pilots offset by carrying less weight, less fuel, or both, depending on the water aerodrome’s length and surrounding terrain.
This is standard high-density-altitude and high-heat performance planning for turboprop aircraft worldwide; it is not unique to any single operator or airframe. For a charter passenger, the practical effect is that an early-morning departure may carry a slightly different passenger or baggage load than a midday flight on the same route, because the operator is planning to the day’s actual density altitude and temperature rather than to a single fixed number.
Which Indonesian Operators Fly This Type?
Two Indonesian start-ups tie directly to the Cessna 208B EX Grand Caravan Amphibian as of 2026. Santai Seaplane (PT Santai Seaplane Aviation), affiliated with Seaplane Asia Group, has named Letkol Wisnu Airport in Buleleng, North Bali, as a planned commercial amphibious operations hub from 2026, alongside a primary operational hub in Banyuwangi, East Java, built under a Build-Operate-Transfer arrangement with InJourney Airports and Akademi Penerbang Indonesia Banyuwangi. Sama Sama Seaplanes, a West Sumatra start-up, has planned to fly Grand Caravan EX amphibians as a virtual carrier under another operator’s Air Operator Certificate, with routes proposed toward Mentawai and, later, Lombok, Komodo and Raja Ampat.
Both remain start-up or trial-stage operations as of this writing, and neither has published a fixed passenger-seat number for their amphibian configuration. That is consistent with how weight-and-balance actually works on this airframe: the honest capacity answer is “confirmed per flight,” not a single number printed on a brochure.
What Should You Declare Before Boarding?
Give your operator, ahead of the trip rather than at check-in, your own body weight, every bag’s approximate weight, and a specific list of any dive, surf, camera or electronic gear you are bringing. Indonesian water-landing operators use this information to run the weight-and-balance calculation for your exact flight, on your exact day, factoring in fuel load and expected temperature. Passengers who under-declare gear weight risk being asked to leave items behind at the dock, or having their seat reassigned to balance the load.
Frequently Asked Questions
How many passengers can actually fit on a Grand Caravan EX amphibian in Indonesia?
There is no single fixed number. Textron Aviation’s wheeled Grand Caravan EX seats up to 9 passengers standard or 14 under a high-density waiver, but amphibious floats add roughly 1,142 lbs of empty weight, so Indonesian operators confirm a lower seat count, often 6 to 9, per flight based on fuel, gear and passenger weight.
Does the amphibian version carry less baggage than a regular Caravan flight?
Effectively yes, because float weight competes with payload. There is no published fixed baggage allowance for the amphibian configuration; operators ask for declared bag and gear weights before the flight and calculate available baggage capacity alongside passenger weight for that specific water-landing leg.
Can a Grand Caravan EX amphibian carry scuba tanks or surfboards in Indonesia?
Operators generally accept both, but scuba cylinders must typically fly empty or depressurized, and surfboards need their length and count declared in advance because they affect cabin stowage. Always list this gear when booking rather than presenting it at the dock, since it factors directly into the weight-and-balance calculation for your flight.