Game version
Undersea Tunnel B4 artwork from Ragnarok Online
PRE-RENEWAL / MAPS

Undersea Tunnel B4

#iz_dun03Dungeon

iz_dun03

Map codeiz_dun03
Width300
Height300
AreaDungeon
Pre-Renewal · Interactive atlasExplore this map in the world atlasOpen Undersea Tunnel B4 in the atlas to explore its monsters and map exits. Open world map
EXPLORE THE AREA

Undersea Tunnel B4 map

iz_dun03
100%
Undersea Tunnel B4 map in Ragnarok Online (iz_dun03)

Green: walkable · blue: water · dark: blocked. Markers use Pre-Renewal coordinates. Highlighted monster areas are spawn regions, not live positions. Client artwork can differ from server terrain.

Monsters on Undersea Tunnel B4

36 static spawns
MonsterAmountRespawn delayPosition
HydraHydraNormal · 106810No added delayMap-wide
HydraHydraNormal · 106815.2 min + 0–2.5 min203, 59
HydraHydraNormal · 106815.38 min + 0–2.5 min203, 56
HydraHydraNormal · 106815.28 min + 0–2.5 min203, 53
HydraHydraNormal · 106815.38 min + 0–2.5 min203, 50
HydraHydraNormal · 106815.08 min + 0–2.5 min203, 47
HydraHydraNormal · 106815.07 min + 0–2.5 min204, 60
HydraHydraNormal · 106815.03 min + 0–2.5 min204, 57
HydraHydraNormal · 106815.17 min + 0–2.5 min204, 54
HydraHydraNormal · 106815.15 min + 0–2.5 min204, 51
HydraHydraNormal · 106815.22 min + 0–2.5 min204, 48
HydraHydraNormal · 106815.35 min + 0–2.5 min191, 144
HydraHydraNormal · 106815.27 min + 0–2.5 min194, 144
HydraHydraNormal · 106814.93 min + 0–2.5 min197, 144
HydraHydraNormal · 106814.7 min + 0–2.5 min200, 144
HydraHydraNormal · 106815.17 min + 0–2.5 min203, 144
HydraHydraNormal · 106815.08 min + 0–2.5 min206, 144
HydraHydraNormal · 106815.13 min + 0–2.5 min209, 144
HydraHydraNormal · 106815.35 min + 0–2.5 min212, 144
HydraHydraNormal · 106815 min + 0–2.5 min193, 143
HydraHydraNormal · 106815 min + 0–2.5 min196, 143
HydraHydraNormal · 106815 min + 0–2.5 min199, 143
HydraHydraNormal · 106815 min + 0–2.5 min202, 143
HydraHydraNormal · 106815 min + 0–2.5 min205, 143
HydraHydraNormal · 106815 min + 0–2.5 min208, 143
HydraHydraNormal · 106815 min + 0–2.5 min211, 143
HydraHydraNormal · 106815 min + 0–2.5 min176, 260
HydraHydraNormal · 106815 min + 0–2.5 min180, 251
HydraHydraNormal · 106815 min + 0–2.5 min178, 253
HydraHydraNormal · 106815 min + 0–2.5 min108, 249
HydraHydraNormal · 106815 min + 0–2.5 min80, 163
MarcMarcNormal · 104540No added delayMap-wide
Marine SphereMarine SphereNormal · 114220No added delayMap-wide
MermanMermanNormal · 1264330 min + 0–20 minMap-wide
PhenPhenNormal · 115845No added delayMap-wide
SwordfishSwordfishNormal · 106940No added delayMap-wide

Coordinates are spawn centers. Actual positions and minimum respawn delays depend on server settings.

Undersea Tunnel B4 map connections

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Drop chances are capped at 100%. These are base-rate estimates; server caps, level penalties, VIP and event bonuses can change the final result. MVP reward drops have their own multiplier.

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