diff --git a/data/v2/csv/encounter_method_prose.csv b/data/v2/csv/encounter_method_prose.csv
index f535b5c81..e60a498b6 100644
--- a/data/v2/csv/encounter_method_prose.csv
+++ b/data/v2/csv/encounter_method_prose.csv
@@ -100,3 +100,4 @@ encounter_method_id,local_language_id,name
 51,9,"Snagging a Pokemon from a trainer in Pokemon Colosseum or Pokemon XD: Gale of Darkness."
 52,9,"Snagging a Pokemon from a trainer in Pokemon Colosseum or Pokemon XD: Gale of Darkness, after you have failed to capture them once."
 53,9,"Finding a Wild Pokemon at any of the three Pokespots in Pokemon XD: Gale of Darkness."
+54,9,Finding a Pokemon in a Hidden Grotto
diff --git a/data/v2/csv/encounter_methods.csv b/data/v2/csv/encounter_methods.csv
index 6288b54e5..436611097 100644
--- a/data/v2/csv/encounter_methods.csv
+++ b/data/v2/csv/encounter_methods.csv
@@ -52,3 +52,4 @@ id,identifier,order
 51,snag,51
 52,snag-rematch,52
 53,pokespot,53
+54,hidden-grotto,54
diff --git a/data/v2/csv/encounter_slots.csv b/data/v2/csv/encounter_slots.csv
index 455649165..f8590b26a 100644
--- a/data/v2/csv/encounter_slots.csv
+++ b/data/v2/csv/encounter_slots.csv
@@ -1396,3 +1396,73 @@ id,version_group_id,encounter_method_id,slot,rarity
 1395,15,1,3,33
 1396,8,31,1,50
 1397,9,31,1,50
+1398,14,54,1,10
+1399,14,54,2,10
+1400,14,54,3,5
+1401,14,54,4,75
+1402,14,54,1,20
+1403,14,54,2,75
+1404,14,54,3,5
+1405,14,54,1,20
+1406,14,54,2,5
+1407,14,54,3,75
+1408,14,54,1,20
+1409,14,54,2,5
+1410,14,54,3,75
+1411,14,54,1,5
+1412,14,54,2,20
+1413,14,54,3,75
+1414,14,54,1,5
+1415,14,54,2,20
+1416,14,54,3,75
+1417,14,54,1,38
+1418,14,54,2,38
+1419,14,54,3,20
+1420,14,54,4,5
+1421,14,54,1,10
+1422,14,54,2,75
+1423,14,54,3,10
+1424,14,54,4,5
+1425,14,54,1,20
+1426,14,54,2,5
+1427,14,54,3,75
+1428,14,54,1,5
+1429,14,54,2,20
+1430,14,54,3,75
+1431,14,54,1,38
+1432,14,54,2,5
+1433,14,54,3,38
+1434,14,54,4,20
+1435,14,54,1,20
+1436,14,54,2,75
+1437,14,54,3,5
+1438,14,54,1,10
+1439,14,54,2,5
+1440,14,54,3,38
+1441,14,54,4,38
+1442,14,54,5,10
+1443,14,54,1,75
+1444,14,54,2,5
+1445,14,54,3,20
+1446,14,54,1,4
+1447,14,54,2,1
+1448,14,54,3,75
+1449,14,54,4,20
+1450,14,54,1,75
+1451,14,54,2,5
+1452,14,54,3,10
+1453,14,54,4,10
+1454,14,54,1,5
+1455,14,54,2,20
+1456,14,54,3,75
+1457,14,54,1,20
+1458,14,54,2,5
+1459,14,54,3,75
+1460,14,54,1,5
+1461,14,54,2,75
+1462,14,54,3,5
+1463,14,54,4,15
+1464,14,54,1,20
+1465,14,54,2,5
+1466,14,54,3,19
+1467,14,54,4,56
\ No newline at end of file
diff --git a/data/v2/csv/encounters.csv b/data/v2/csv/encounters.csv
index 40f88c229..dbc388800 100644
--- a/data/v2/csv/encounters.csv
+++ b/data/v2/csv/encounters.csv
@@ -66084,3 +66084,143 @@ id,version_id,location_area_id,encounter_slot_id,pokemon_id,min_level,max_level
 71742,12,23,1396,349,10,20
 71743,13,23,1396,349,10,20
 71744,14,23,1397,349,10,20
+71745,21,1340,1398,29,55,59
+71746,22,1340,1398,29,55,59
+71747,21,1340,1399,32,55,59
+71748,22,1340,1399,32,55,59
+71749,21,1340,1400,210,55,59
+71750,22,1340,1400,210,55,59
+71751,21,1340,1401,505,55,59
+71752,22,1340,1401,505,55,59
+71753,21,1341,1402,310,55,59
+71754,22,1341,1402,310,55,59
+71755,21,1341,1403,417,55,59
+71756,22,1341,1403,417,55,59
+71757,21,1341,1404,523,55,59
+71758,22,1341,1404,523,55,59
+71759,21,1342,1405,48,55,59
+71760,22,1342,1405,48,55,59
+71761,21,1342,1406,271,55,59
+71762,22,1342,1406,271,55,59
+71763,21,1342,1407,400,55,59
+71764,22,1342,1407,400,55,59
+71765,21,1343,1408,510,20,24
+71766,22,1343,1408,510,20,24
+71767,21,1343,1409,572,20,24
+71768,22,1343,1409,572,20,24
+71769,21,1343,1410,590,20,24
+71770,22,1343,1410,590,20,24
+71771,21,1344,1411,206,25,29
+71772,22,1344,1411,206,25,29
+71773,21,1344,1412,527,25,29
+71774,22,1344,1412,527,25,29
+71775,21,1344,1413,590,25,29
+71776,22,1344,1413,590,25,29
+71777,21,1345,1414,299,25,29
+71778,22,1345,1414,299,25,29
+71779,21,1345,1415,527,25,29
+71780,22,1345,1415,527,25,29
+71781,21,1345,1416,590,25,29
+71782,22,1345,1416,590,25,29
+71783,21,1346,1417,335,30,34
+71784,22,1346,1417,335,30,34
+71785,21,1346,1418,336,30,34
+71786,22,1346,1418,336,30,34
+71787,21,1346,1419,505,30,34
+71788,22,1346,1419,505,30,34
+71789,21,1346,1420,613,30,34
+71790,22,1346,1420,613,30,34
+71791,21,1347,1421,89,35,39
+71792,22,1347,1421,89,35,39
+71793,21,1347,1422,510,35,39
+71794,22,1347,1422,510,35,39
+71795,21,1347,1423,569,35,39
+71796,22,1347,1423,569,35,39
+71797,21,1347,1424,626,35,39
+71798,22,1347,1424,626,35,39
+71799,21,1348,1425,114,35,39
+71800,22,1348,1425,114,35,39
+71801,21,1348,1426,451,35,39
+71802,22,1348,1426,451,35,39
+71803,21,1348,1427,590,35,39
+71804,22,1348,1427,590,35,39
+71805,21,1349,1428,363,35,39
+71806,22,1349,1428,363,35,39
+71807,21,1349,1429,425,35,39
+71808,22,1349,1429,425,35,39
+71809,21,1349,1430,590,35,39
+71810,22,1349,1430,590,35,39
+71811,21,1350,1431,99,55,59
+71812,22,1350,1431,99,55,59
+71813,21,1350,1432,149,55,59
+71814,22,1350,1432,149,55,59
+71815,21,1350,1433,222,55,59
+71816,22,1350,1433,222,55,59
+71817,21,1350,1434,441,55,59
+71818,22,1350,1434,441,55,59
+71819,21,1351,1435,279,40,44
+71820,22,1351,1435,279,40,44
+71821,21,1351,1436,591,40,44
+71822,22,1351,1436,591,40,44
+71823,21,1351,1437,619,40,44
+71824,22,1351,1437,619,40,44
+71825,21,1352,1438,55,50,54
+71826,22,1352,1438,55,50,54
+71827,21,1352,1439,207,50,54
+71828,22,1352,1439,207,50,54
+71829,21,1352,1440,335,50,54
+71830,22,1352,1440,335,50,54
+71831,21,1352,1441,336,50,54
+71832,22,1352,1441,336,50,54
+71833,21,1352,1442,359,50,54
+71834,22,1352,1442,359,50,54
+71835,21,1353,1443,183,10,14
+71836,22,1353,1443,183,10,14
+71837,21,1353,1444,206,10,14
+71838,22,1353,1444,206,10,14
+71839,21,1353,1445,507,10,14
+71840,22,1353,1445,507,10,14
+71841,21,1354,1446,127,20,24
+71842,22,1354,1447,127,20,24
+71843,21,1354,1447,214,20,24
+71844,22,1354,1446,214,20,24
+71845,21,1354,1448,415,20,24
+71846,22,1354,1448,415,20,24
+71847,21,1354,1449,542,20,24
+71848,22,1354,1449,542,20,24
+71849,21,1355,1450,35,45,49
+71850,22,1355,1450,35,45,49
+71851,21,1355,1451,132,45,49
+71852,22,1355,1451,132,45,49
+71853,21,1355,1452,215,45,49
+71854,22,1355,1452,215,45,49
+71855,21,1355,1453,375,45,49
+71856,22,1355,1453,375,45,49
+71857,21,1356,1454,37,35,39
+71858,22,1356,1454,37,35,39
+71859,21,1356,1455,436,35,39
+71860,22,1356,1455,436,35,39
+71861,21,1356,1456,591,35,39
+71862,22,1356,1456,591,35,39
+71863,21,1357,1457,55,35,39
+71864,22,1357,1457,55,35,39
+71865,21,1357,1458,333,35,39
+71866,22,1357,1458,333,35,39
+71867,21,1357,1459,591,35,39
+71868,22,1357,1459,591,35,39
+71869,21,1358,1460,61,55,59
+71870,22,1358,1460,61,55,59
+71871,21,1358,1461,297,55,59
+71872,22,1358,1462,297,55,59
+71873,21,1358,1462,308,55,59
+71874,22,1358,1461,308,55,59
+71875,21,1358,1463,371,55,59
+71876,22,1358,1463,371,55,59
+71877,22,1359,1464,12,55,59
+71878,21,1359,1464,15,55,59
+71879,21,1359,1465,198,55,59
+71880,22,1359,1465,198,55,59
+71881,21,1359,1466,286,55,59
+71882,22,1359,1466,286,55,59
+71883,21,1359,1467,591,55,59
+71884,22,1359,1467,591,55,59
\ No newline at end of file
diff --git a/data/v2/csv/location_area_encounter_rates.csv b/data/v2/csv/location_area_encounter_rates.csv
index adf840688..b51877d96 100644
--- a/data/v2/csv/location_area_encounter_rates.csv
+++ b/data/v2/csv/location_area_encounter_rates.csv
@@ -3872,3 +3872,43 @@ location_area_id,encounter_method_id,version_id,rate
 1270,53,20,90
 1294,53,20,90
 1295,53,20,90
+1340,54,21,20
+1340,54,22,20
+1341,54,21,20
+1341,54,22,20
+1342,54,21,20
+1342,54,22,20
+1343,54,21,20
+1343,54,22,20
+1344,54,21,20
+1344,54,22,20
+1345,54,21,20
+1345,54,22,20
+1346,54,21,20
+1346,54,22,20
+1347,54,21,20
+1347,54,22,20
+1348,54,21,20
+1348,54,22,20
+1349,54,21,20
+1349,54,22,20
+1350,54,21,20
+1350,54,22,20
+1351,54,21,20
+1351,54,22,20
+1352,54,21,20
+1352,54,22,20
+1353,54,21,20
+1353,54,22,20
+1354,54,21,20
+1354,54,22,20
+1355,54,21,20
+1355,54,22,20
+1356,54,21,20
+1356,54,22,20
+1357,54,21,20
+1357,54,22,20
+1358,54,21,20
+1358,54,22,20
+1359,54,21,20
+1359,54,22,20
diff --git a/data/v2/csv/location_area_prose.csv b/data/v2/csv/location_area_prose.csv
index 9db1ed598..46a5fc36a 100644
--- a/data/v2/csv/location_area_prose.csv
+++ b/data/v2/csv/location_area_prose.csv
@@ -2369,4 +2369,24 @@ location_area_id,local_language_id,name
 1336,9,Friend Safari (Ghost)
 1337,9,Friend Safari (Dark)
 1338,9,Friend Safari (Steel)
-1339,9,Friend Safari (Fairy)
\ No newline at end of file
+1339,9,Friend Safari (Fairy)
+1340,9, Route 2 (Hidden Grotto)
+1341,9,Unova Route 3 (Hidden Grotto – Dark Grass)
+1342,9,Unova Route 3 (Hidden Grotto – Pond)
+1343,9,Unova Route 5 (Hidden Grotto)
+1344,9,Unova Route 6 (Hidden Grotto – Near Pokemon Breeder)
+1345,9,Unova Route 6 (Hidden Grotto – Mistralton Cave)
+1346,9,Unova Route 7 (Hidden Grotto)
+1347,9,Unova Route 9 (Hidden Grotto)
+1348,9,Unova Route 13 (Hidden Grotto – Giant Chasm)
+1349,9,Unova Route 13 (Hidden Grotto – Stairs)
+1350,9,Unova Route 18 (Hidden Grotto)
+1351,9,Unova Route 22 (Hidden Grotto)
+1352,9,Unova Route 23 (Hidden Grotto)
+1353,9,Floccesy Ranch (Hidden Grotto)
+1354,9,Lostlorn Forest (Hidden Grotto)
+1355,9,Giant Chasm (Hidden Grotto)
+1356,9,Abundant Shrine (Hidden Grotto – Near Youngster)
+1357,9,Abundant Shrine (Hidden Grotto – Shrine)
+1358,9,Pinwheel Forest (Hidden Grotto – Outer area)
+1359,9,Pinwheel Forest (Hidden Grotto – Inner area)
\ No newline at end of file
diff --git a/data/v2/csv/location_areas.csv b/data/v2/csv/location_areas.csv
index 27343bfc3..70ecf6031 100644
--- a/data/v2/csv/location_areas.csv
+++ b/data/v2/csv/location_areas.csv
@@ -1219,4 +1219,24 @@ id,location_id,game_index,identifier
 1336,680,0,ghost
 1337,680,0,dark
 1338,680,0,steel
-1339,680,0,fairy
\ No newline at end of file
+1339,680,0,fairy
+1340,357,15,hidden-grotto
+1341,358,16,hidden-grotto-dark-grass
+1342,358,16,hidden-grotto-pond
+1343,360,93,hidden-grotto
+1344,361,94,hidden-grotto-near-pokemon-breeder
+1345,361,94,hidden-grotto-mistralton-cave
+1346,362,95,hidden-grotto
+1347,364,97,hidden-grotto
+1348,368,100,hidden-grotto-giant-chasm
+1349,368,100,hidden-grotto-stairs
+1350,373,31,hidden-grotto
+1351,541,127,hidden-grotto
+1352,542,128,hidden-grotto
+1353,544,130,hidden-grotto
+1354,414,72,hidden-grotto
+1355,403,88,hidden-grotto
+1356,412,70,hidden-grotto-near-youngster
+1357,412,70,hidden-grotto-shrine
+1358,375,33,hidden-grotto-outer-area
+1359,375,33,hidden-grotto-inner-area
\ No newline at end of file