After you rescue birds and make the wind blow again from Windvale, a gull can take you to Safarium and Zue.
Go to Zue
Safarium is empty right now, so just go south from the Gull to leave. Your next destination is Zue, which is directly south of Safarium on the other side of the mountains. Go around the mountains and go into the small jungle area directly south of Safarium. This is Zue.
You will have a tough time here if you don't have the BirdSuit, which you can buy from the shop back in Sanctuar, where you talked to the King Bird.
From the entrance of Zue, go west to reach the next area. Then go north and kill the two Lizard Men, then crawl into the hole in the north wall of leaves. Go north and kill the Lizard Man there. If you want more experience, go farther north to find another Lizard Man. Then go back down to where there are two eastward paths. Use the lower of the two east paths.
You can go south from here if you want more experience. Otherwise, go to the northeast part of this large area to find a venus fly trap, which is not a monster. You can talk to it. Pick up the small brown plants to reach the venus plant. Nearby, there are two chests, one that contains an M.Bulb and another that contains a P.Cure.
Now go back to the west side of this area and use the west exit. You'll be back in the area where there are two eastward paths. Take the upper eastern path. In this dry area, go north and exit to the north.
Activate the First Rainfall Altar
Go west and kill the Dungun turtle to release a soul. This soul tells you about the Rainfall Altars. You will need to release many souls in Zue so they can go to the rainfall altars.
From where you freed the first soul, go east and then north to exit this area. Then go east to another area, then north to another area, then go east to find a Lizard Man. Kill it to release another soul. Talk to it and it will return to the Rainfall Altar.
Go southeast to the next area and kill the Dungun to release another soul.
From there, go north, then west, then south, then west, then north. There is an ivy wall there. Jump down it and go south, then kill the frog-like Douma and talk to the soul.
From there, go west and kill another Douma, then crawl into the hole to the north. Go north and climb up the vines, then go into the door. The four souls that you released will unleash the power of the Rainfall Altar, making plants grow in the dry areas. After Ark talks about the plants, you can continue.
Activate the Second Rainfall Altar
Go south from the altar to where the water appeared. Swim south to reach a treasure chest that contains a DEF potion. Use it right away to permanently increase your DEF by 1.
Now swim northeast, then go south along the grass until you reach the southeast corner of the area. Use the east exit. Kill the Demi Basilisk and go north. From there, go to the northeast part of this area by crawling through the leaves. You will reach two treasure chests, one of which contains a Sticker (it's a weapon, so equip it) and the other of which contains an M.Bulb. Crawl back out of this area and use the southeast exit to reach the next area.
Go south into the water. You can swim to the south shore if you want to kill a Dungun and Demi Basilisk for experience. Otherwise, get back into the water and swim east to the next area.
Swim north to reach the ledge, and use the north exit to find a chest that contains a P.Cure. From there, go south to the previous area. Walk east of the water and you find two black rocks. You have to equip the RocSpear and use it on those rocks to destroy them. Then be sure to equip the Sticker again. Go south and kill the Dungun to release a soul. Talk to the soul to make it go to another Rainfall Altar. Then go east to reach the next area.
There are a couple of Dunguns near where you enter. North of the entrance, there is a hole in the leaf wall. Crawl through and kill the Dunguns in there to release another soul. Talk to the soul to make it go to the next Rainfall Altar. There is a chest in the northwest part of the small area where you freed the soul. It contains an S.Bulb.
Crawl back out of that area, then go east and north. Jump down at the ivy wall, then go northeast. Ark will notice a flimsy wall. Go northwest and lure the Douma frog over to the wall. Make it use its Exhale Air ability on the flimsy wall. The wall will break. Kill the two Douma frogs before you continue. You'll release another soul. Then go east through where you broke the wall, then go north to some vines. Climb up, then go west. You will pass by some vines, but you should keep going west for now until you reach the next area.
Kill the Lizard Man to release the fourth soul. Be sure to talk to it. Then go north to get a Magirock. Then go east to return to the area that you just came from. Climb up the nearby vines and go north to enter the second Rainfall Altar. The four souls are there, and they will start the rain.
Activate the Third Rainfall Altar
Go outside and go south to drop down the ledge. Make your way eastward and go into the water at the end. Swim southward until you see some tree stumps. Get out of the water to the left of the leftmost tree stump. Push the stump into the water, then walk on the stump and push the second stump to the right. Go northeast to find a chest that contains 65gems and another chest that contains a Life Potion. Use the Life Potion right away to permanently increase your HP by 5. Go south and use the southern exit to reach the next area.
Kill the Demi Basilisks to release a soul, then talk to the soul to make it go to the Rainfall Altar. Go south to the next area.
Go south and jump down the ledge, then go west and kill the Doumas to release another soul, then talk to it to make it go to the Rainfall Altar. Go south to reach the next area.
Go south and kill the Doumas to release another soul. Then go east and collect the Magirock. If you don't get this Magirock, it will be lost forever when you visit the next Rainfall Altar.
Go north from where you got the Magirock and follow the path to the tree stumps. Push one into the water and push the other one to the left, then get into the water and go south to the next area. Then swim west until you can get out of the water to the north. Kill the Dungun, then go west and kill the Demi Basilisk to release another soul. From there, go southwest to the next area.
Go south and get into the water. There is a tree stump blocking the path to the south. Go east to the next area. Keep swiming east to reach the next area. From there, swim west until you can get out of the water to the north. Go north to enter the third Rainfall Altar. Walk up to make the souls start the rain. When they're done, go back outside.
Swim west from the Rainfall Altar, then get out of the water to the north. Keep going north to find a Magirock.
Reach the Boss
Go south from where you got the Magirock, get in the water, and swim east from the third Rainfall Altar. Swim back to where there used to be a tree stump blocking the path to the south. Swim south past where the tree stump was. Follow the path until you can get out of the water to the south shore. Kill the Demi Basilisk and then go east to find a treasure chest that contains a Luck Potion. Use the potion right away to permanently increase your Luck by 1.
Go south from where you got the Luck Potion and get back into the water. Swim northeast, then use the east exit to go back to the previous area. From there, go north to the next area. Get out of the water to the left and run north to the next area. Go north, then east, and get into the water, then go northeast to the next area. Go north, then get out of the water next to the tree stump and push the stump into the water, then push the next stump to the right. Go northeast, then south to the next area. Keep going south until you reach some water. Swim south until you can't go south anymore, then go east and north and into the temple.
In the first phase of battle, attack Storm Master's torso while avoiding the scythes that he throws at you and the flames that he shoots onto the platform. You can stay near the door to avoid the flames. Stand to the side if Storm Master throws a scythe. If you get too close to Storm Master, it will cover up its torso, preventing damage. You have to use a dash attack to hit the torso before Storm Master can block the attack. After you have done enough damage, Storm Master will shake, then break apart.
In the next phase of battle, Storm Master will bump into the walls to make rocks fall on you, and it can spit flames on the platform like before. Stay at the south end of the platform to avoid attacks, but stand near the middle of the platform to make Storm Master float down to the platform. Hit its face when it comes near.
You'll see the revival of mammals.
Afterward, you'll be back in Safarium, where there are some animals around. In the northeast corner, there is a Magishop and item shop. The item shop has Stardew, which you can use to lift curses.
Go into the door just north of that Magishop and item shop. The lions will discuss eating you. Just stand still and only press a button to read the dialogue. When the lions go north, follow them north into the door and then go south to reach the Lion's Den. They tell you that the king's son Leim has not returned from the canyon. Leim's mother asks you to go to the canyon to look for him.
Go outside of Safarium and then go south into the Savannah area. Keep going south until you find a path in the mountain. Go there to enter the Canyon.