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Aquazone was an underwater theme first introduced by the LEGO Company in 1995. The setting of all the Aquazone lines was the ocean, and usually involved two sides fighting each other for certain valuables (such as Hydrolator Crystals and other treasures). As the series progressed, new factions were introduced and the older ones were phased out of production. There were five subthemes of Aquazone. Its last new releases were in 1998.

Aquazone was the second entirely new LEGO System theme (after Pirates) that was introduced after the initial three classic major themes Town, Castle, and Space from 1978.

History and Factions

Aquanauts (1995-1996)

See Main Article: Aquanauts
Aquazone Wave Racers Legoland Florida

Aquazone based atraction in Florida Legoland.

In the original Aquazone line, the heroic Aquanaut miners fought against the villainous Aquasharks and their leader, Thresher, for control of the crystal mines. The Aquanauts were a group of miners based at the Neptune Discovery Lab, who utilized submarines and submersibles of all shapes and sizes to look for Hydrolator crystals, which they depended on for survival and possibly trade.

The yellow base colour of the subs and the bowl-shaped cockpit pieces gave the Aquanauts a rather realistic appearance that was close to actual mini submarines. However, the second wave in 1996 brought a vessel that featured wheels.

Aquasharks (1995-1996, 1998)

See Main Article: Aquasharks

The Aquasharks were villainous underwater miners who competed with the Aquanauts for control of crystals and crystal mines. The Aquashark subs sported a colour scheme that was similar to Space Police I and their streamlined design, with eyes and shark teeth on the cockpit windows giving them an aggressive appearance.

In 1998 the set 6100 Aquashark Dart was released. The colour scheme was unlike any previous Aquashark set. Only the minifigure's torso was a distinct Aquashark piece.

Aquaraiders (1997)

See Main Article: Aquaraiders

In 1997, the Aquanauts and Aquasharks subthemes were discontinued and the Aquaraiders were introduced as an alternate villain faction that competed with both the Aquanauts and Aquasharks. Their fleet consisted of three vessels in black with green accents and trans-neon green window pieces. The front windows sported stickers with angry eyes on them. The ships had accessories that looked like drills and grinders and had quite an exotic look for submarines. (Note that actual drills were not introduced until the release of Rock Raiders in 1999). One "ship" even featured an excavator bucket. Another one had wheels. The focus changed from simply collecting crystals to underwater mining.

A new theme called Aqua Raiders was introduced in 2007. This was not a part of Aquazone.

Hydronauts (1998-1999)

See Main Article: Hydronauts

The final years in the Aquazone line involved a battle between the Hydronaut miners and the fish-like Stingrays. One of the main differences was that the Hydronauts would actually capture the Stingrays and lock them up in the Hydro Crystallization Station. The protagonists included Hank Hydro, Hip Waders, and Crystal Miner.

The colour scheme was similar the one of the Aquanaut line, the only difference being the transparent pieces which were now exclusively transparent green instead of blue and trans-neon orange. But the designs looked even more exotic than in 1997. Like the Aquanauts and Aquaraiders, the Hydronauts had also a wheeled underwater vehicle, but unlike their predecessors from 1997, they didn't make any use of drilling equipment.

The minifigures had unique masks printed onto their faces which gave them a very alien look.

The Hydronauts used suction cups to move their storage boxes in contrast to the commonly utilized magnets.

Stingrays (1998)

See Main Article: Stingrays

The Stingrays were fish-like mutants and enemies of the Hydronauts who used underwater vessels that resembled sea creatures like rays or crabs. The villains included Commander Manta Ray and Raven Ray, who despite his great intelligence, often found himself in a Hydronaut holding cell.

New Pieces


The piece Rock 1 x 1 Crystal 5 Point made its debut in the Aquazone theme.

With the start of the Aquazone line some new pieces that later became ubiquitous were introduced. However there were also some pieces that were never seen again outside of this theme.

  • Crystals
  • Silver knife and short harpoon
  • Minifigure flippers
  • Propellers
  • Hydronaut helmet: These parts first appeared in the Hydronauts sets and reappeared only in the 1999 Town-Spaceport theme.
  • Octopus


Exclusive pieces

  • Aquazone underwater visors: These pieces were only used in Aquazone sets. Other underwater themes used diving masks with snorkels.
  • Aquanaut helmet: This element was never used outside the Aquanaut subtheme.
  • Aquashark helmet: This element was only used in the Aquashark and Aquaraiders subthemes.
  • Stingray helmet and minifigure head: These parts were never used outside the Stingray subtheme.
  • Suction guns: These parts were never used outside the Hydronaut subtheme.


Image#SetNumber of piecesMinifiguresPriceRelease
10951095Super Sub241$3.001999
1728 Crystal Crawler1728Crystal Crawler911 1996
1749 Paravine1749Aquanaut Paravane161$2.001996
1806 Underwater Scooter1806Underwater Scooter161 1996
1822 Box1822Sea Claw 7192Aquanaut (2)$20.001995
2160-12160Crystal Scavenger105Scavenger Sam$15.001997
2161 Aqua Dozer2161Aqua Dozer1311$25.001997
2162 Box2162Hydro Reef Wrecker2792$40.001997
51605160Aquazone Accessories21$3.001995
5382-15382Aquazone Accessories281 (Skeleton parts) 1998
61006100Aquashark Dart241 1998
6104-16104Aquacessories / Aquanauts & Aquasharks202$3.001996
6107 Recon Ray6107Recon Ray201$2.991998
6109 Sea Creeper (Better Picture)6109Sea Creeper791$9.991998
6110 Box6110Solo Sub22Hydronaut$4.001998
6115 Box6115Shark Scout / Aquashark Dart281 Aquashark$3.501995
6125 Box6125Sea Sprint 9 / Aquanaut Octopod281 Aquanaut$4.001995
6109 Sea Creeper (Better Picture)6140Sea Creeper781$9.991998
1728 Crystal Crawler6145Crystal Crawler911$11.991996
6150 Box6150Crystal Detector101Hydronaut$19.991998
6155 Box6155Deep Sea Predator / Aquashark Barracuda1031 Aquashark$22.001995
6159 Crystal Detector6159Crystal Detector104Hydronaut 1998
6160 box6160Sea Scorpion2923$34.991998
6175 Box6175Crystal Explorer Sub / Aquanaut DSRV II1602$33.001995
6180 Box6180Hydro Search Sub2744$50.001998
6190 Box6190Shark's Crystal Cave256Thresher, Aquashark$50.001996
6195 Box6195Neptune Discovery Lab / Aqua Dome 74954$88.991995
6198-16198Stingray Stormer3984$70.001998
6199 HCS6199Hydro Crystallization Station4725$89.991998
AqweirdAquanautsMinifigure Pocket Clip1Aquanaut 1992
CoffeemugAquasharksDrinking Mug1 1995
6135 Box6135Spy Shark62Thresher$8.751996
6109 Sea Creeper (Better Picture)6140Sea Creeper781$9.991998


Other underwater themes

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