diff --git a/mods/MAPGEN/mcl_structures/schematics/mcl_structures_ocean_temple.mts b/mods/MAPGEN/mcl_structures/schematics/mcl_structures_ocean_temple.mts
new file mode 100644
index 000000000..0260dfca2
Binary files /dev/null and b/mods/MAPGEN/mcl_structures/schematics/mcl_structures_ocean_temple.mts differ
diff --git a/mods/MAPGEN/mcl_structures/shipwrecks.lua b/mods/MAPGEN/mcl_structures/shipwrecks.lua
index a6dbb4981..e8b43634b 100644
--- a/mods/MAPGEN/mcl_structures/shipwrecks.lua
+++ b/mods/MAPGEN/mcl_structures/shipwrecks.lua
@@ -172,3 +172,113 @@ mcl_structures.register_structure("shipwreck",{
 		}
 	}
 })
+
+local spawnon = { "mcl_stairs:slab_prismarine_dark"}
+
+mcl_structures.register_structure("ocean_temple",{
+	place_on = {"group:sand","mcl_core:gravel"},
+	spawn_by = {"group:water"},
+	num_spawn_by = 4,
+	noise_params = {
+		offset = 0,
+		scale = 0.00022,
+		spread = {x = 250, y = 250, z = 250},
+		seed = 32345,
+		octaves = 3,
+		persist = 0.001,
+		flags = "absvalue",
+	},
+	sidelen = 32,
+	flags = "force_placement",
+	biomes = ocean_biomes,
+	y_max = water_level-4,
+	y_min = mcl_vars.mg_overworld_min,
+	filenames = {
+		modpath .. "/schematics/mcl_structures_ocean_temple.mts",
+	},
+	y_offset = function(pr) return pr:next(-2,0) end,
+	after_place = function(p,def,pr)
+		local p1 = vector.offset(p,-9,0,-9)
+		local p2 = vector.offset(p,9,32,9)
+		mcl_structures.spawn_mobs("mobs_mc:guardian",spawnon,p1,p2,pr,5,true)
+		mcl_structures.spawn_mobs("mobs_mc:guardian_elder",spawnon,p1,p2,pr,1,true)
+		mcl_structures.construct_nodes(p1,p2,{"group:wall"})
+	end,
+	loot = {
+		["mcl_chests:chest_small"] = {
+			stacks_min = 3,
+			stacks_max = 10,
+			items = {
+				{ itemstring = "mcl_sus_stew:stew", weight = 10, amount_min = 1, amount_max = 1 },
+				{ itemstring = "mcl_core:paper", weight = 8, amount_min = 1, amount_max = 12 },
+				{ itemstring = "mcl_farming:wheat_item", weight = 7, amount_min = 8, amount_max = 21 },
+				{ itemstring = "mcl_farming:carrot_item", weight = 7, amount_min = 4, amount_max = 8 },
+				{ itemstring = "mcl_farming:potato_item_poison", weight = 7, amount_min = 2, amount_max = 6 },
+				{ itemstring = "mcl_farming:potato_item", weight = 7, amount_min = 2, amount_max = 6 },
+				--{ itemstring = "TODO:moss_block", weight = 7, amount_min = 1, amount_max = 4 },
+				{ itemstring = "mcl_core:coal_lump", weight = 6, amount_min = 2, amount_max = 8 },
+				{ itemstring = "mcl_mobitems:rotten_flesh", weight = 5, amount_min = 5, amount_max = 24 },
+				{ itemstring = "mcl_farming:potato_item", weight = 3, amount_min = 1, amount_max = 5 },
+				{ itemstring = "mcl_armor:helmet_leather_enchanted", weight = 3, func = function(stack, pr)
+						mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}) end },
+				{ itemstring = "mcl_armor:chestplate_leather_enchanted", weight = 3, func = function(stack, pr)
+						mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}) end },
+				{ itemstring = "mcl_armor:leggings_leather_enchanted", weight = 3, func = function(stack, pr)
+						mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}) end },
+				{ itemstring = "mcl_armor:boots_leather_enchanted", weight = 3, func = function(stack, pr)
+						mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}) end },
+				--{ itemstring = "TODO:bamboo", weight = 2, amount_min = 1, amount_max = 3 },
+				{ itemstring = "mcl_farming:pumpkin", weight = 2, amount_min = 1, amount_max = 3 },
+				{ itemstring = "mcl_tnt:tnt", weight = 1, amount_min = 1, amount_max = 2 },
+
+			},
+			{
+			stacks_min = 2,
+			stacks_max = 6,
+			items = {
+				{ itemstring = "mcl_core:iron_ingot", weight = 90, amount_min = 1, amount_max = 5 },
+				{ itemstring = "mcl_core:iron_nugget", weight = 50, amount_min = 1, amount_max = 10 },
+				{ itemstring = "mcl_core:emerald", weight = 40, amount_min = 1, amount_max = 5 },
+				{ itemstring = "mcl_dye:blue", weight = 20, amount_min = 1, amount_max = 10 },
+				{ itemstring = "mcl_core:gold_ingot", weight = 10, amount_min = 1, amount_max = 5 },
+				{ itemstring = "mcl_core:gold_nugget", weight = 10, amount_min = 1, amount_max = 10 },
+				{ itemstring = "mcl_experience:bottle", weight = 5, amount_min = 1, amount_max = 1 },
+				{ itemstring = "mcl_core:diamond", weight = 5, amount_min = 1, amount_max = 1 },
+				}
+			},{
+			stacks_min = 3,
+			stacks_max = 3,
+			items = {
+				--{ itemstring = "FIXME TREASURE MAP", weight = 8, amount_min = 1, amount_max = 5 },
+				{ itemstring = "mcl_core:paper", weight = 20, amount_min = 1, amount_max = 10 },
+				{ itemstring = "mcl_mobitems:feather", weight = 10, amount_min = 1, amount_max = 5 },
+				{ itemstring = "mcl_books:book", weight = 5, amount_min = 1, amount_max = 5 },
+				{ itemstring = "mcl_clock:clock", weight = 1, amount_min = 1, amount_max = 1 },
+				{ itemstring = "mcl_compass:compass", weight = 1, amount_min = 1, amount_max = 1 },
+				{ itemstring = "mcl_maps:empty_map", weight = 1, amount_min = 1, amount_max = 1 },
+
+				}
+			},
+		}
+	}
+})
+
+mcl_structures.register_structure_spawn({
+	name = "mobs_mc:guardian",
+	y_min = mcl_vars.mg_overworld_min,
+	y_max = mcl_vars.mg_overworld_max,
+	chance = 10,
+	interval = 60,
+	limit = 9,
+	spawnon = spawnon,
+})
+
+mcl_structures.register_structure_spawn({
+	name = "mobs_mc:guardian_elder",
+	y_min = mcl_vars.mg_overworld_min,
+	y_max = mcl_vars.mg_overworld_max,
+	chance = 100,
+	interval = 60,
+	limit = 4,
+	spawnon = spawnon,
+})