Introducing the new Splashdrone 4+, SwellPro’s Next Generation Marine & Fishing Drone

October 12, 2025

Whether you are fishing, inspecting your farm, or monitoring the water ways and lakes around New Zealand’s harsh marine environment, you need gear that doesn’t just survive, but performs in some tough weather and marine environments. Enter the new SplashDrone 4+ (SD4+) from SwellPro: a drone that purpose-built for both commercial tasks and for anglers who want more than just bait drop.

What makes the Splashdrone 4+ worth considering:

Here are the commercial-grade features that give the SD4+ serious muscle in a NZ environment and make the Splashdrone 4+ stand out from every other drone out there:

FeatureWhat It IsWhy It Matters in NZ Context
SeaShield™ Water resistance + IP65 ratingThe drone is built so its body, motors, and many circuits resist ingress of water and resist salt corrosion.Because salt water and marine spray are real enemies. On boats, offshore platforms, coastal inspections, and during rough weather, corrosion and water damage kill off lesser craft. This gives longer life, less maintenance, better reliability.
PowerFlip™ Self-Righting Float TechnologyIf the drone lands on water (intentionally or unintentionally), it floats, flips back upright, and can recover & take off again without human rescue.NZ’s coasts and estuaries often require water takeoffs or water landings (e.g. from boat decks or jetties). Being able to self-right avoids loss in surf or drift issues.
2 kg Payload Capacity + Dual Payload ReleaseThe drone can carry up to 2 kg and drop payloads via dual release mechanisms.For commercial tasks like search & rescue supplies, medical drops, environmental sensors, or even water sampling, that payload is significant. Also for fishing, being able to carry heavier baits or multiple payloads increases reach and flexibility.
Robust Flight in Wind + High GNSS AccuracyMax wind resistance ~17-18 m/s; GNSS supports GPS + Galileo + BeiDou; no calibration required before flights over water.In NZ, conditions change quickly: strong gusts, coastal winds, high rainfall, variable cloud cover. Reliable positioning over water and resistance to wind means safer, more predictable missions.
Long Range Communications & Remote VisibilityTransmission range (round-trip) up to ~6-7 km with no payload; controller with wet-hand capable touchscreen, high brightness display.For many NZ fisheries, coast guard or environmental teams, being able to fly further offshore or monitor things visually from a distance without being hampered by glare or rain is critical. Also helps when you don’t have support boats nearby.
Temperature / Altitude RangeOperates from around -10 to +40 °C (or higher in some spec entries), take-off altitude up to 4000 m above sea-level.This covers almost every NZ environment: coastal, alpine, Fiordland, etc. You don’t have to worry (much) about the drone fogging up, or failing near sea level or at higher elevation research stations.

What the SD4+ Brings to Drone Fishing in NZ

For anglers, from shore-based surf fishers, charter operators, to commercial fishers and hobbyists, the SD4+ unlocks a lot of “next level” capabilities:

  1. Remote Bait Placement & Burley
    With 2 kg payload and stable dual release, you can send bait or Burley to spots otherwise unreachable from shore or by boat – perhaps over reefs, gullies, or around submerged structure invisible from the surface.
  2. Underwater Sonar & “Reading the Water”
    Combine with the options high precision sonar to detect fish arches or underwater features. Especially useful in NZ’s diverse coastline zones, such asharbours, estuaries and offshore reef edges, where structure dictates fish location but is often obscured.
  3. Effective Trolling / Casting from the Sky
    Long transmission ranges (up to 7 km in some configs) allow fishing far away with confidence in signal. That means you can launch bait or equipment beyond what surf casting or boat trolling allows, with visual or sonar feedback.
  4. Weather-Resilient Performance
    Rain, spray, salt and surf: these are part of the fishing game. The SD4+’s waterp resistance, corrosion protection, float/recovery system mean less downtime, less need for protective maintenance after every trip.
  5. Better Data, Better Return
    Anglers can record 4K/5.7K video (depending on camera version), map spots and revisit data, which is helpful for tracking tides, fish movement; useful also to create content, improve methods, even prove catch locations or consents if needed (e.g. for charter or commercial licensing).

Commercial & Industrial Applications in NZ

Because the SD4+ is not simply a fishing drone, its capabilities extend far beyond this, into many industries and government use-cases around NZ:

  • Search & Rescue / Coast Guard
    For locating people in water, delivering floatation aids or supplies, surveying wrecks, remote beaches, or conducting night operations using lights or thermal cameras. Its long range, waterproofing, float-and-self-right are powerful safety features.
  • Environmental Monitoring
    Water sampling, collecting water for laboratory work, monitoring algal blooms, tracking water quality in lakes, rivers, estuaries.
  • Infrastructure Inspection
    Bridges, wharves, offshore platforms, aquaculture farms (e.g. mussel or salmon farms). Being able to approach wet, corrosive environments safely and mount different sensors (thermal, zoom, sonar) is a big plus.
  • Law Enforcement / Marine Authority Use
    Surveillance, enforcement of marine protection rules, tracking illegal dumping or fishing, patrolling marine reserves. The megaphone/delivery payloads let you issue verbal commands or warnings.
  • Media / Tourism
    Tourism companies that run boat tours, scenic operators, content creators will find the SD4+ useful for capturing aerials, flyovers, video content of remote Fiordland sounds, glaciers, etc., especially in wet or challenging conditions.

If you are wanting to learn more about the commercial and industrial applications of the SD4+ then please also visit our page, which provides more information and detail on this, CLICK HERE

Why the Splashdrone 4+ is Perfect Drone for NZ

  • Diverse Marine Zones: From the cold, rough seas off the southern coasts, to sheltered bays, high rainfall in the west coast, and alpine lakes, NZ hits a wide range of the tough environments the SD4+ is made for.
  • Strong Fishing Culture: Many Kiwis fish commercially or recreationally, either surfcasting, rock fishing or boat fishing. The lure of being able to place baits further out, work in more variable weather, or fish over remote reefs has wide appeal.
  • Regulatory Considerations / Safety: NZ has strict safety and marine rules. A drone that floats, resists water, lands safely in water (and flips self-righted) helps with reducing risk of crash losses, lessens hazards to other vessels or swimmers, helps meet safety expectations.
  • Remote / Off-Grid Use: Many coastal or rural locations in NZ are comparatively remote, with limited support infrastructure. Having a robust, reliable, easily deployed drone matters, being quick to get airborne in changing weather (e.g. calm early morning tides, wind picks up later).

Potential Limitations & Things to consider

To be fair and help prospective users make good decisions, here are some caveats & what to watch:

  • Payload & Flight Time Trade-offs: As with all drones, carrying heavier payloads (baits, sensors) reduces flight time substantially. Know how far you need to go, how much bait you need, how long you’ll hover or loiter.
  • Saltwater & Maintenance: Even with corrosion protection, salt is a harsh element. Users should regularly rinse with fresh water, maintain motors, check seals. Warranty & service support in NZ matters.
  • Legal / Regulatory Compliance: Drone fishing, or use of drones for delivery / payload drops, may require permissions or adherence to rules (aviation, marine, safety). Always verify with Civil Aviation Authority NZ, Maritime NZ, and relevant local councils. Also check local bylaws for flying over beaches, reserves, etc.
  • Recovery: Even with floating/self-righting, rough surf or a drift from wind/currents may still make recovery difficult. Having redundancy (extra batteries, spare parts, perhaps tethered backup) is smart.

For more detailed information about the national rules and regulations around flying you drone around New Zealand, please visit the Civil Aviation Authority ( NZ CAA) by clicking on this link

Suggested Use Cases & Scenarios in NZ for the Splashdrone 4+

Here are a few “scene ideas” to illustrate what the SD4+ enables:

  • A charter fishing operator in the Bay of Islands who uses the drone to locate schools with sonar, drop chummed bait beyond reef shelves, send back live video to the boat to decide whether to move spots, even in early morning low sun glare.
  • Environmental researchers in Fiordland who need to sample water at different depths, capture thermal imagery of glacial melt runoff, inspect moss growth on remote waterfalls, all under heavy rainfall or spray.
  • A Department of Conse
  • rvation / Coast Guard mission to drop lifesaving gear or a locator beacon to someone stranded on a rocky shore, without risking boat launch in dangerous surf.
  • A salmon aquaculture farm in Marlborough Sounds inspecting net nets, mooring lines, detecting damage, doing visual surveys and using zoom/thermal sensors to monitor fish health.

What to Look For / Buying Tips Specific to NZ

  • Authentic Warranty & Local Support: Buy from a NZ-based authorised dealer (like SwellPro NZ) so that you have warranty service, spare parts, service centers available. Importing gear without local backup means longer downtime.
  • Extra Batteries / Spare Props: Given the distances, payload needs and saltwater abuse, have spares, especially batteries rated cold, spare propellers (they wear), and spare payload release mechanisms.
  • Sensors & Payloads Tailored to Use: If fishing, get the sonar, good camera, mechanical bait release modules. If enterprise work like inspection or environmental sampling, consider sensors (thermal, zoom, water sampler), stable mountings.
  • Training / Pilot Competence: It’s powerful gear. Pilot training, understanding of flight over water / sea states, wind, emergency procedures will make a difference in performance, safety, and avoiding loss.

For anyone serious about marine work in New Zealand, whether in fishing, environmental science, law enforcement, aquaculture, charter operations, or rescue, the SwellPro SplashDrone 4+ represents a significant step up. It brings together rugged maritime reliability, high payload, smart sensors and features tailor-made for wet, windy, variable-light, remote settings.

If you want gear that doesn’t just manage these challenges but eats them for breakfast, the SD4+ is a drone worth checking out. For Kiwis who want more from a drone than just a good camera, this could be the partner you’ve been waiting for.

For more information on the Splashdrone 4+ or to buy one, please go to our product page: CLICK HERE