Coastal Chart
A captain's-chart voyage across 6 real coastal biomes, plotted at true signed latitude/longitude, with a shared solar calendar. Ported from the 1.9 Canvas2D app's real data (data.js/astro.js) — chart date 2026-07-21 (day 202 of year).
The 6 sites (true signed latitude/longitude)
| # | Site | Real place | Lat | Lon | Day length | Season now |
|---|---|---|---|---|---|---|
| 1 | Pacific Northwest Temperate Rainforest Coast | Olympic Peninsula, Washington, USA | +47.8 | -124.7 | 15.2h | Summer |
| 2 | Tropical Coral-Reef / Beach Coast | Kona Coast, Hawaii, USA | +19.6 | -155.5 | 13.0h | Summer |
| 3 | African Savanna Coast | near Malindi, Kenya | -3.2 | +40.1 | 11.8h | Winter |
| 4 | Arctic / Tundra Coast | near Longyearbyen, Svalbard, Norway | +78.9 | +11.9 | 24.0h | Summer |
| 5 | Mediterranean Coast | near Marseille, France | +43.3 | +5.4 | 14.7h | Summer |
| 6 | Cold Southern-Hemisphere Coast | near Ushuaia, Tierra del Fuego, Argentina | -54.8 | -68.3 | 7.7h | Winter |
The voyage route
Pacific Northwest Temperate Rainforest Coast → Tropical Coral-Reef / Beach Coast → African Savanna Coast → Arctic / Tundra Coast → Mediterranean Coast → Cold Southern-Hemisphere Coast → Pacific Northwest Temperate Rainforest Coast — the boat sails this loop on the shared calendar clock, same formula for every leg.
Pacific Northwest Temperate Rainforest Coast
Olympic Peninsula, Washington, USA — +47.8° lat, -124.7° lon. Season now: Summer (day length 15.2h, solar declination 20.5°).
A wet, moss-hung conifer coastline: black-tailed deer and rabbits browse the sword-fern understory, wolves and foxes hunt through it, and the rainforest stays green through every season.
Fauna
| Species | Scientific name | Behaviour this season | Source |
|---|---|---|---|
| Columbian black-tailed deer | Odocoileus hemionus columbianus | browsing the fern understory | KullGames.LivingWorld biomes.js (northwoods) |
| Brush rabbit | Sylvilagus bachmani | foraging in the thicket | KullGames.LivingWorld biomes.js (northwoods) |
| Gray wolf | Canis lupus | running the pack territory | KullGames.LivingWorld biomes.js (northwoods) |
| Red fox | Vulpes vulpes | hunting alone through the understory | KullGames.LivingWorld biomes.js (northwoods) |
Flora
| Species | Scientific name | State this season | Source |
|---|---|---|---|
| Douglas fir | Pseudotsuga menziesii | evergreen — green year-round | OnlyCSharp.Data Catalogs.Biology.Botany/Conifers.cs |
| Sitka spruce | Picea sitchensis | evergreen — green year-round | OnlyCSharp.Data Catalogs.Biology.Botany/Conifers.cs |
| Western red cedar | Thuja plicata | evergreen — green year-round | OnlyCSharp.Data Catalogs.Biology.Botany/Conifers.cs |
| Sword fern | Polystichum munitum | evergreen — green year-round | OnlyCSharp.Data Catalogs.Biology.Botany/Ferns.cs |
| Glittering wood moss | Hylocomium splendens | evergreen — green year-round | OnlyCSharp.Data Catalogs.Biology.Botany/Mosses.cs |
Tropical Coral-Reef / Beach Coast
Kona Coast, Hawaii, USA — +19.6° lat, -155.5° lon. Season now: Summer (day length 13.0h, solar declination 20.5°).
A sunlit reef with almost no seasons at all: shoals of reef fish and parrotfish graze the coral, sharks and grouper cut through, giant clams filter the shallows, and coconut palms line the beach year-round.
Fauna
| Species | Scientific name | Behaviour this season | Source |
|---|---|---|---|
| Reef fish (damselfish/wrasse shoal) | Chromis / Labridae spp. | shoaling over the coral | KullGames.LivingWorld biomes.js (reef) |
| Parrotfish | Scaridae spp. | grazing algae off the reef | KullGames.LivingWorld biomes.js (reef) |
| Reef shark | Carcharhinus spp. | patrolling the drop-off | KullGames.LivingWorld biomes.js (reef) |
| Grouper | Epinephelinae spp. | holding near a coral head | KullGames.LivingWorld biomes.js (reef) |
| Giant clam | Tridacna spp. | filter-feeding, mantle open to the sun | KullGames.LivingWorld biomes.js (reef) |
Flora
| Species | Scientific name | State this season | Source |
|---|---|---|---|
| Coconut palm | Cocos nucifera | evergreen — green year-round | OnlyCSharp.Data Catalogs.Biology.Botany/Palms.cs |
| Sweet orange | Citrus x sinensis | dormant (not flowering) | OnlyCSharp.Data Catalogs.Biology.Botany/Citrus.cs |
African Savanna Coast
near Malindi, Kenya — -3.2° lat, +40.1° lon. Season now: Winter (day length 11.8h, solar declination 20.5°).
Gold coastal grassland just south of the equator: gazelle and zebra herds move across it, lions track them, vultures clean up, and day length barely changes all year this close to the equator.
Fauna
| Species | Scientific name | Behaviour this season | Source |
|---|---|---|---|
| Gazelle | Eudorcas / Gazella spp. | grazing with the herd | KullGames.LivingWorld biomes.js (savanna) |
| Plains zebra | Equus quagga | grazing with the herd | KullGames.LivingWorld biomes.js (savanna) |
| Lion | Panthera leo | resting in the shade, tracking the herd | KullGames.LivingWorld biomes.js (savanna) |
| Vulture | Gyps spp. | circling on thermals | KullGames.LivingWorld biomes.js (savanna) |
Flora
| Species | Scientific name | State this season | Source |
|---|---|---|---|
| Bermuda grass | Cynodon dactylon | evergreen — green year-round | OnlyCSharp.Data Catalogs.Biology.Botany/Grasses.cs |
| Flame lily | Gloriosa superba | dormant (not flowering) | direct (real, native East-African coastal wildflower) |
Arctic / Tundra Coast
near Longyearbyen, Svalbard, Norway — +78.9° lat, +11.9° lon. Season now: Summer (day length 24.0h, solar declination 20.5°).
A polar coast where the sun itself keeps the calendar: real polar day through the Arctic summer, real polar night through the winter, and a short, intense wildflower bloom in between.
Fauna
| Species | Scientific name | Behaviour this season | Source |
|---|---|---|---|
| Ringed seal | Pusa hispida | hauled out at a breathing hole | KullGames.LivingWorld biomes.js (tideflat, concept reuse) |
| Arctic tern | Sterna paradisaea | breeding under the midnight sun | KullGames.LivingWorld biomes.js (tideflat gull, concept reuse) |
Flora
| Species | Scientific name | State this season | Source |
|---|---|---|---|
| Purple saxifrage | Saxifraga oppositifolia | in bloom | direct (real, one of the northernmost-flowering plants on Earth, blooms in Svalbard's brief polar summer) |
Mediterranean Coast
near Marseille, France — +43.3° lat, +5.4° lon. Season now: Summer (day length 14.7h, solar declination 20.5°).
A real 4-season Mediterranean coast: roses and citrus mark spring and winter blossom, gulls and shags work the calanque cliffs, and succulents ride out the dry Provençal summer.
Fauna
| Species | Scientific name | Behaviour this season | Source |
|---|---|---|---|
| Yellow-legged gull | Larus michahellis | working the harbour and cliffs | KullGames.LivingWorld biomes.js (tideflat gull, concept reuse) |
| European shag | Gulosus aristotelis | diving for fish off the rocks | direct (real Mediterranean coastal seabird, nests on the Marseille calanque cliffs) |
Flora
| Species | Scientific name | State this season | Source |
|---|---|---|---|
| French rose | Rosa gallica | dormant (not flowering) | OnlyCSharp.Data Catalogs.Biology.Botany/Roses.cs |
| Sedum | Sedum spp. | in bloom | OnlyCSharp.Data Catalogs.Biology.Botany/Succulents.cs |
| Aloe vera | Aloe vera | dormant (not flowering) | OnlyCSharp.Data Catalogs.Biology.Botany/Succulents.cs |
| Lemon | Citrus limon | dormant (not flowering) | OnlyCSharp.Data Catalogs.Biology.Botany/Citrus.cs |
Cold Southern-Hemisphere Coast
near Ushuaia, Tierra del Fuego, Argentina — -54.8° lat, -68.3° lon. Season now: Winter (day length 7.7h, solar declination 20.5°).
The hemisphere-flip proof: this Beagle Channel coast runs exactly opposite the four Northern sites — summer in December-February, winter in June-August — out of the same solar math, not a special case.
Fauna
| Species | Scientific name | Behaviour this season | Source |
|---|---|---|---|
| Southern king crab | Lithodes santolla | working the cold shallows | KullGames.LivingWorld biomes.js (tideflat, concept reuse) |
| Chilean flat oyster | Ostrea chilensis | filter-feeding in the tideflat | KullGames.LivingWorld biomes.js (tideflat, concept reuse) |
| South American sea lion | Otaria flavescens | hauled out on the rocks | KullGames.LivingWorld biomes.js (tideflat, concept reuse) |
| Kelp gull | Larus dominicanus | working the channel | KullGames.LivingWorld biomes.js (tideflat, concept reuse) |
Flora
| Species | Scientific name | State this season | Source |
|---|---|---|---|
| Monkey puzzle | Araucaria araucana | evergreen — green year-round | OnlyCSharp.Data Catalogs.Biology.Botany/Conifers.cs |
| Peat moss | Sphagnum spp. | evergreen — green year-round | OnlyCSharp.Data Catalogs.Biology.Botany/Mosses.cs |