diff --git a/autogen/lua_definitions/structs.lua b/autogen/lua_definitions/structs.lua
index bd5c1b1f..27ec5c1c 100644
--- a/autogen/lua_definitions/structs.lua
+++ b/autogen/lua_definitions/structs.lua
@@ -687,6 +687,7 @@
 --- @field public vanishCapDurationVcutm integer
 --- @field public vanishCapSequence integer
 --- @field public visibleSecrets integer
+--- @field public wdwWaterLevelSpeed number
 --- @field public wingCapDuration integer
 --- @field public wingCapDurationTotwc integer
 --- @field public wingCapLookUpReq integer
diff --git a/docs/lua/structs.md b/docs/lua/structs.md
index 5fe94990..41bea6d2 100644
--- a/docs/lua/structs.md
+++ b/docs/lua/structs.md
@@ -1005,6 +1005,7 @@
 | vanishCapDurationVcutm | `integer` |  |
 | vanishCapSequence | `integer` |  |
 | visibleSecrets | `integer` |  |
+| wdwWaterLevelSpeed | `number` |  |
 | wingCapDuration | `integer` |  |
 | wingCapDurationTotwc | `integer` |  |
 | wingCapLookUpReq | `integer` |  |
diff --git a/src/game/behaviors/wdw_water_level.inc.c b/src/game/behaviors/wdw_water_level.inc.c
index b4a2e66b..d3dd7c2f 100644
--- a/src/game/behaviors/wdw_water_level.inc.c
+++ b/src/game/behaviors/wdw_water_level.inc.c
@@ -72,7 +72,7 @@ void bhv_water_level_diamond_loop(void) {
             case WATER_LEVEL_DIAMOND_ACT_CHANGE_WATER_LEVEL:
                 o->oAngleVelYaw = 0;
                 *gEnvironmentLevels = (s32) approach_f32_symmetric(
-                    (f32) *gEnvironmentLevels, (f32) o->oWaterLevelTriggerTargetWaterLevel, 10.0f);
+                    (f32) *gEnvironmentLevels, (f32) o->oWaterLevelTriggerTargetWaterLevel, gLevelValues.wdwWaterLevelSpeed);
                 if (*gEnvironmentLevels == o->oWaterLevelTriggerTargetWaterLevel) {
                     if ((s16) o->oFaceAngleYaw == 0)
                         o->oAction++; // Sets to WATER_LEVEL_DIAMOND_ACT_IDLE_SPINNING
diff --git a/src/game/hardcoded.c b/src/game/hardcoded.c
index 5094d0d7..42f16a87 100644
--- a/src/game/hardcoded.c
+++ b/src/game/hardcoded.c
@@ -118,7 +118,8 @@ struct LevelValues gDefaultLevelValues = {
     .maxLives                       = 100,
     .maxCoins                       = 999,
     .numCoinsToLife                 = 50,
-    .bubbleOnDeathBarrierInCapStages = false
+    .bubbleOnDeathBarrierInCapStages = false,
+    .wdwWaterLevelSpeed             = 10.0f,
 };
 
 struct LevelValues gLevelValues = { 0 };
diff --git a/src/game/hardcoded.h b/src/game/hardcoded.h
index 29ff6b69..8b328ad2 100644
--- a/src/game/hardcoded.h
+++ b/src/game/hardcoded.h
@@ -86,6 +86,7 @@ struct LevelValues {
     u16 maxCoins;
     u16 numCoinsToLife;
     bool bubbleOnDeathBarrierInCapStages;
+    f32 wdwWaterLevelSpeed;
 };
 
 extern struct LevelValues gLevelValues;
diff --git a/src/pc/lua/smlua_cobject_autogen.c b/src/pc/lua/smlua_cobject_autogen.c
index 340497e3..5ced8ad7 100644
--- a/src/pc/lua/smlua_cobject_autogen.c
+++ b/src/pc/lua/smlua_cobject_autogen.c
@@ -743,7 +743,7 @@ static struct LuaObjectField sLakituStateFields[LUA_LAKITU_STATE_FIELD_COUNT] =
     { "yaw",                              LVT_S16,     offsetof(struct LakituState, yaw),                              false, LOT_NONE  },
 };
 
-#define LUA_LEVEL_VALUES_FIELD_COUNT 46
+#define LUA_LEVEL_VALUES_FIELD_COUNT 47
 static struct LuaObjectField sLevelValuesFields[LUA_LEVEL_VALUES_FIELD_COUNT] = {
     { "bubbleOnDeathBarrierInCapStages",  LVT_BOOL,    offsetof(struct LevelValues, bubbleOnDeathBarrierInCapStages),  false, LOT_NONE          },
     { "cellHeightLimit",                  LVT_S16,     offsetof(struct LevelValues, cellHeightLimit),                  false, LOT_NONE          },
@@ -787,6 +787,7 @@ static struct LuaObjectField sLevelValuesFields[LUA_LEVEL_VALUES_FIELD_COUNT] =
     { "vanishCapDurationVcutm",           LVT_U16,     offsetof(struct LevelValues, vanishCapDurationVcutm),           false, LOT_NONE          },
     { "vanishCapSequence",                LVT_U8,      offsetof(struct LevelValues, vanishCapSequence),                false, LOT_NONE          },
     { "visibleSecrets",                   LVT_U8,      offsetof(struct LevelValues, visibleSecrets),                   false, LOT_NONE          },
+    { "wdwWaterLevelSpeed",               LVT_F32,     offsetof(struct LevelValues, wdwWaterLevelSpeed),               false, LOT_NONE          },
     { "wingCapDuration",                  LVT_U16,     offsetof(struct LevelValues, wingCapDuration),                  false, LOT_NONE          },
     { "wingCapDurationTotwc",             LVT_U16,     offsetof(struct LevelValues, wingCapDurationTotwc),             false, LOT_NONE          },
     { "wingCapLookUpReq",                 LVT_U8,      offsetof(struct LevelValues, wingCapLookUpReq),                 false, LOT_NONE          },