オリオンブルー氷河 lagoon: 解放順序、秘密の場所、最高の名魚

The Orion Blue Glacial Lagoon is the coldest fishing region on the alien planet, and it sits near the end of the natural progression path for anglers who started in Beachcombe Bay. Because the lagoon locks behind a specific story beat and a minimum rod upgrade, most newcomers hit a wall here during their first winter cycle. This guide breaks down the Orion Blue Glacial Lagoon unlock order, lists every confirmed fast travel point, and maps the hidden cave zones where the rarest coldwater fish actually bite. To get the full picture, the annotated entry for All Locations pinpoints every shrine, campsite, and fishing pier tied to the lagoon's daily reset window.

Orion Blue Glacial Lagoon Overview and Biome Profile

The lagoon sits in the far north of the explorable map, framed by vertical ice cliffs, frozen tidal pools, and a ring of snow-covered basalt columns that block line-of-sight casts. According to the official Orion Blue Steam store page, the planet is divided into several themed regions, and Glacial Lagoon is the one that leans hardest into the coldweather fishing fantasy. Surface temperature drops to roughly -12 °C in-game, and a wind-chill meter ticks up whenever the player crosses the open ice shelf without a wool hat from a furniture crafting recipe.

What Makes the Biome Different

The defining mechanic in this region is the Thermal Stability bar that sits beneath the regular stamina gauge. Standing on exposed ice drains it slowly, while casting into a heated vent restores a small chunk per second. Community testing suggests the bar is the gating factor for which fish will actually surface, because most rare coldwater species refuse to bite when the gauge is below 50%.

Why This Region Matters

Most players reach the lagoon with a fully upgraded rod, three or four mid-game lures, and a fishing log already half full. What changes here is the Orion Blue biome types list itself, because four of the seven coldwater species in the entire game are exclusive to this single region. Missing the unlock window means waiting an entire in-game year for the next cold front, which is the main reason the region has a reputation for being skipped by casual players.

Orion Blue Area Unlock Order and Prerequisites

The full Orion Blue area unlock order runs Beachcombe Bay → Coral Gardens → Hydrothermal Vents → Starlit Shallows → Glacial Lagoon. The first three regions unlock through a mix of story dialogue and a minimum Player Level gate, but the lagoon adds a fourth requirement: the Permafrost Rod Blueprint, which is purchased from the Blacksmith NPC inside the Hydrothermal Vents hub town for 4,800 coins and 12× Volcanic Ingot.

Step-by-Step Unlock Path

• Reach Player Level 18 to trigger the cutscene where the lighthouse keeper in Starlit Shallows mentions a "frozen mirror lake" to the north.

• Complete the side quest "Cartographer's Regret" that asks you to map three hidden coves in Coral Gardens.

• Purchase the Permafrost Rod Blueprint from the Blacksmith and craft the rod using 8× Frostwood Plank, 6× Tidal Core, and 2× Sapphire Thread.

• Sail to the waypoint marker north of Starlit Shallows, where a frozen gate slides open when the rod is equipped.

Common Pitfalls

The most common reason players think the region is bugged is that the gate checks for the rod itself, not the blueprint. Equipping the blueprint item in the rod slot will not trigger the cutscene, and the gate stays shut until the crafted rod is in the active slot. A second common pitfall is trying to enter during the warm season, because the gate only renders during in-game winter cycles (roughly the second and third real-time weeks after launch, repeating on a server-tied calendar).

Orion Blue Fast Travel Points and Map Layout

The Orion Blue fast travel points cluster around four major nodes, and unlocking all four cuts overland travel time to the region by roughly 70%. The first node unlocks automatically when the player steps through the frozen gate, and the other three open as the player discovers them physically — there is no fast travel scroll or consumable item in the game, which keeps exploration feel grounded.

Confirmed Fast Travel Nodes

• Ice Gate Plaza — auto-unlock on entry. Contains a fireplace, a bait merchant, and a save lantern.

• Shard Cathedral Ruins — hidden zone reward, located west of the main lagoon. Unlocks after solving a five-pillar light puzzle that runs on a 90-second timer.

• Tideglass Lookout — perched on a basalt spire above the southern ice shelf. Unlocks by climbing a rope ladder that only renders when the player's Thermal Stability bar is above 75%.

• Mirror Lake Center — the deepest point in the region. Unlocks automatically during the main story quest "Reflection Theory" once the player casts into the central pool and triggers the cutscene with the glacier spirit NPC.

Travel Cost and Cooldowns

Fast travel costs 0 in-game coins but applies a 60-second cooldown per node after arrival, which prevents farming routes from teleporting back and forth. Cooldowns reset when the player saves at a lantern or quits to the title screen, according to community testing. There is no penalty for dying near a node, but the respawn point defaults to Ice Gate Plaza, which forces a manual walk back to deeper zones.

Orion Blue Secret Areas and Hidden Cave Zones

The Orion Blue secret areas list is shorter than the open-water map suggests, because most of the region is exposed ice that the camera renders without fog of war. The cave count comes out to four confirmed entries plus a fifth that community data treats as rumor, and each cave runs its own micro-biome that affects which species bite.

Confirmed Hidden Caves

• Frostfang Grotto — a vertical ice cave that requires the Heated Bait consumable to enter. Houses the Glacier Pike, an aggressive predator that only bites when the lure drops below 20 m depth.

• Echoing Icefall — a horizontal tunnel that loops back to Tideglass Lookout. Contains a treasure chest with the cosmetic item "Polar Angler Coat" and a daily-respawning school of Frostling Sardines.

• Tideglass Cavern — accessed by diving under the basalt spire supporting Tideglass Lookout. The water here is slightly warmer because of a submerged volcanic vent, which lets the player recover Thermal Stability passively while fishing.

• Mirror Lake Underbelly — a flooded chamber beneath the central pool. Unlocks only after completing the side quest "Reflection Theory" and talking to the glacier spirit NPC twice.

The Rumored Fifth Cave

Community reports mention a fifth cave behind the frozen waterfall north of Mirror Lake, but as of the current patch the waterfall is a static prop. Players have datamined an unused ice texture file with a "Frozen Cascade" identifier, which suggests the cave is reserved for a post-launch update rather than the day-one release. Until an official patch note confirms it, treat the rumored cave as unverified and avoid spending in-game currency on guides that promise an entrance location.

Orion Blue Region Best Fish and Catch Strategy

The Orion Blue region best fish discussion centers on four species: Glacier Pike, Spirit Sturgeon, Frostling Sardines, and Mirror Carp. Each one drops a different crafting reagent, and three of the four are required for the "Master of Cold" achievement that ships with the day-one patch. Because the coldwater bite window is narrow and the Thermal Stability bar punishes mistakes, strategy matters more than raw rod level in this region.

How to Land Each Rare Species

The Glacier Pike sits at the top of the food chain in this region. It only bites in Frostfang Grotto, only when the lure drops below 20 m, and only when the Heated Bait consumable is active. Casting near the cave walls rather than the open center pulls the strike rate from roughly 4% up to 18%, based on community testing across multiple play sessions.

The Spirit Sturgeon is the rarest species in the entire game, with a confirmed catch rate under 1% even at the optimal spot in Mirror Lake Underbelly. The bite only triggers during a server-wide snowstorm event, which happens once every four real-time hours, and the player must keep the rod still for at least 12 seconds before the strike lands. Rushing the cast spooks the fish and resets the encounter.

The Frostling Sardines are the most reliable food source in the region. They school near Echoing Icefall, bite on basic worm bait, and respawn on a server-side timer every 20 minutes. They are not rare, but they are the only fish in the lagoon that cooks into a meal that fully restores the Thermal Stability bar, which makes them essential for extended farming runs.

The Mirror Carp is a mid-tier species that bites only at sunrise in-game. It drops the crafting reagent Pondglass Scale, which is used in three late-game furniture recipes. The Carp prefers shallow coves with a soft lure, and the bite window lasts roughly four in-game minutes per sunrise cycle.

Recommended Lure Loadout

A balanced loadout for a typical 30-minute farming run looks like three Glow Worms (for Spirit Sturgeon attempts), five Soft Lures (for Mirror Carp), and eight Worms (for Frostling Sardines). Heated Bait is expensive — three Volcanic Ingots per craft — so most players carry only two per run and use them exclusively on Glacier Pike attempts inside Frostfang Grotto. The Thermal Stability bar drains fastest while standing in open ice, so planning the route to minimize time outside the heated vent near Tideglass Lookout is the single biggest DPS-style optimization a player can make in this region.

よくある質問

What level do I need to enter the Glacial Lagoon?

You need Player Level 18, the crafted Permafrost Rod equipped in the active slot, the Cartographer's Regret side quest completed, and an active in-game winter cycle. Missing any one of those four conditions leaves the frozen gate shut until all are met.

Are there secret areas in the Glacial Lagoon worth the trip?

Yes, four confirmed hidden caves ship with day one, and a fifth rumored cave appears to be reserved for a post-launch patch. Frostfang Grotto and Mirror Lake Underbelly are the two most valuable, because they house the Glacier Pike and the Spirit Sturgeon respectively.

Which fish is the rarest in the Orion Blue Glacial Lagoon?

The Spirit Sturgeon is the rarest, with a confirmed under 1% catch rate even at the optimal Mirror Lake Underbelly spot during a server-wide snowstorm event. It is also the only species required for the Master of Cold achievement.

Do fast travel points in the lagoon cost in-game currency?

No, every confirmed fast travel node is free to use once unlocked, but each applies a 60-second cooldown after arrival. Cooldowns reset when the player saves at a lantern or quits to the title screen, which keeps travel feel grounded without making exploration punishing.

Can I enter the Glacial Lagoon during summer in-game?

No, the frozen gate only renders during in-game winter cycles, which repeat on a server-tied calendar roughly every two real-time weeks. Trying to approach the gate during any other season leaves it invisible, and the player gets a soft denial message rather than a hard fail.