Simply visit all Catavan Stand. Here's the full list (the S. El Lair is required) :
Hakolo IslandMahana Village
North Kamuna Cape
East Kamuna Heights
AlcalaSailor's Beach
Rutoh Village
Alcala Valley
Alcala Highlands
Etulle Lofty Trees
Harzgai Rocky Hill
Harzgai Hill - Inner
Wendwood
LoloskaLoloska Wintry Way
Kuan Village
Base of Mt. Lavina
Woodland
Loloska Forest
Loloska Rocky Canyon
Lavina Glacial Peaks
Lavina Hot Spring
LamureLulucion
Sadona Barrens
Monster Research Lab
Jalma Highlands
Lamure Tower Front
Lamure Tower - 3F
Lamure Tower - 5F
Pit of Remembrance
Felyne Shelter
Pomore Garden
TergaTerga Volcano Base
Nua Te Village
Hakolo Island End Game / Post StoryForbidden Grounds
Fbn. Grounds - Altar
Elder's LairElder's Lair - Z1
Elder's Lair - Z2
Elder's Lair - Z3
Elder's Lair - Z4
Elder's Lair - Z5
Elder's Lair - Z6
Elder's Lair - Z7
Elder's Lair - Z8
Elder's Lair - Z9
Special Elder's LairS. Elder's Lair - Z1
S. Elder's Lair - Z2
S. Elder's Lair - Z3
S. Elder's Lair - Z4
S. Elder's Lair - Z5
S. Elder's Lair - Z6
S. Elder's Lair - Z7
S. Elder's Lair - Z8
S. Elder's Lair - Z9