Call of Whales housing guide

Heartopia Seamount Underwater Home Guide

Unlock the Seamount Management Terminal, open your underwater homestead, build with friends, manage eco-fish schools, and fix terminal problems.

Official Heartopia Call of Whales underwater season artwork
Official Call of Whales underwater season artwork

Quick answer

Reach Whalefall Canyon Exploration Lv.5

Progress the Whalefall Canyon Expedition Catalog and finish its quests until the Seamount Management Terminal reward becomes available. This is Exploration Level 5, not Ocean Cleaning Level 5. Claim the terminal, then use it near the home entrance to manage your underwater Seamount.

Event entry

D.G. Lv.7

Also complete “The Answer Lies Within.”

Home unlock

Exploration Lv.5

Use the Whalefall Expedition Catalog level.

Access point

Management Terminal

Look near the mailbox or home entrance.

Systems

Build + eco-fish

Blueprints, co-builds, visits and fish schools.

Requirements

Which Level Unlocks Seamount?

ProgressTargetControlsDo not confuse it with
D.G. MemberLv.7Event and canyon entryA high D.G. level does not award the terminal.
Whalefall ExplorationLv.5Terminal and underwater home accessThis is the Expedition Catalog level.
Ocean CleaningSeparate hobbyCleaner progressionCleaning Lv.5 does not unlock Seamount.
Dolphin FamiliarityLv.4 priorityLife FragmentsIt does not unlock the home.
Check the progress label: if cleaning rises but Seamount remains locked, return to the Whalefall Canyon Expedition Catalog and complete its exploration tasks.

Unlock route

How to Get the Management Terminal

  1. 1. Open Whalefall Canyon

    Reach D.G. Lv.7, complete “The Answer Lies Within,” then use the portal near the base of Whale Mountain.

  2. 2. Raise Exploration

    Complete expedition quests, gather catalog progress and claim available Expedition Catalog rewards.

  3. 3. Claim the terminal

    At Exploration Lv.5, complete the related prompt and claim the Seamount Management Terminal. Recheck unclaimed catalog rewards if it does not appear.

  4. 4. Enter Seamount

    Use the terminal at the home entrance, open the underwater plot, then choose its build, blueprint or management action.

Terminal functions

Build, Visit and Co-build

Underwater building

Build while swimming, then inspect the layout from above, below and both sides.

Blueprints

Save a blueprint checkpoint before making large structural changes.

Co-builds

Confirm that the invited player can enter and that plot permissions allow collaboration.

Visits

Use the dark-blue terminal near another player’s mailbox. Their permissions must allow access.

Underwater ecosystem

Eco-fish Schools and Sea Nurturing

Add

Release owned fish

Release eligible fish from your backpack or warehouse into Seamount waters to create ornamental schools.

Nurture

Submit materials

Use the management panel and contribute the materials it currently requests to nurture the surrounding sea.

Expand

Raise eco-fish tier

Higher ecological fish tiers unlock additional fish-school options shown by the terminal.

Keep some Broken Seashells. Players report using seashell materials during fish-school progression. Read the current terminal requirement before selling duplicates; do not rely on a fixed quantity across tiers.

Seasonal visitor

Dolphin Visits and Gifts

Dolphins can visit Seamount and leave gifts as relationship progression develops. A visit is occasional, not guaranteed after every feed or login.

Open Dolphin guide
  1. 1. Unlock Seamount at Exploration Lv.5.
  2. 2. Complete the Dolphin introduction.
  3. 3. Raise group Familiarity to Lv.4 to unlock Life Fragments.
  4. 4. Check visits naturally without assuming a fixed gift timer.

Saved locally

Seamount Setup Checklist

Marks stay in this browser and do not change game progress.

Troubleshooting

Terminal Not Showing or Working

Lv.5 but no terminal

Claim pending Expedition Catalog rewards, finish the new expedition prompt, check the entrance/mailbox area, then re-enter town.

High D.G. level but locked

Confirm that Whalefall Exploration, not Ocean Cleaning, reached Lv.5.

Another terminal has no button

The owner’s permissions may block visitors. Try a friend or a public terminal that allows access.

Fish school will not expand

Check the ecological fish panel. Owning fish and supplying the current eco-tier materials are separate requirements.

Co-build is unavailable

Confirm the other player can enter and review plot permissions before starting build mode.

No Dolphin visit

Complete the introduction and continue familiarity. Seasonal visits are not an immediate guaranteed reward.

Quick answers

Seamount FAQ

Does Ocean Cleaning Lv.5 unlock Seamount?

No. The terminal is tied to Whalefall Canyon Exploration Lv.5.

Can I visit before owning one?

Yes, if another player’s terminal permissions allow visitors.

Are blueprints and co-builds supported?

Yes. They are supported alongside visits and underwater building.

How do I add fish?

Release eligible owned fish, then nurture the sea with materials requested by the terminal.