East Lake Axewell
To reach your next destination, Hammerlocke, we'll need to traverse the Wild Area again. As a reminder, since you have 3 Gym badges, you can catch Pokémon up to Level 35. If you haven't visited the Wild Area in a while, you could consider exploring the southern half (below the giant bridges). You might also find that you can now catch some of the strong Pokémon you couldn't catch before.
Anyway, we're here to tell you how to reach Hammerlock as efficiently as possible. Like our previous visit to the Wild Area, you're free to stray from our suggested path. It doesn't matter how you get to Hammerlocke, as long as you get there!
To begin with, make sure you're facing east from the entrance to Motostoke. In the distance, you should see a faraway bridge on the left. Meanwhile along the right should be Lake Axewell itself. Head forward (east) all the way until you reach the bridge. As you begin to set forth, there may be a strong Pokémon (Level 36) along the path, possibly a Garbodor.
Along the left, there's a glowing den. Once you're roughly halfway towards the bridge, you'll transition to the next zone.
North Lake Miloch
When you arrive here via East Lake Axewell, you should be fairly close to the bridge on the left-hand side. But be cautious of a strong Pokémon just ahead. It should be a Level 28 Liepard. Go ahead and catch it if you'd like. Continue towards the pair of trees ahead, to the right of the bridge. Search the area in-between the trees for a hidden Revive.
Afterwards, go up towards the bridge. There's a Watt Trader standing on the left. If you search the tree further left, you can find a Big Mushroom. Now you can go across the bridge. But if you're feeling resourceful, there's a useful item you can grab near here.
Shocking Thunder Stone
From the pair of trees next to the bridge, follow the dirt path on the right. This will take you between some patches of tall grass. Soon, there will be a glowing den on the left. Go up to the den and move the camera so it moves slightly to the right (towards the south-east).
There should be a hill ahead. Follow the incline to the top of the hill. Before you reach the hill, on the right, there's another den and a slope going downwards. Plus a Level 50 Corviknight. At the top of the hill, head through the tall grass on the right-hand side. Finally, grab the Thunder Stone at the end.
Because it's a lake, most of the interesting Pokémon are found in the water. On the ground, there isn't much to see, so don't bother staying here too long!
On the other side of the bridge, you'll reach the area underneath the giant bridge connecting Motostoke with Galar Mine No. 2. Ahead, towards the north, there's a Level 36 Snorlax bumbling along. On the right (east), there's a glowing den. Further right, there's another berry tree, with a Level 40 strong Pokémon (usually a Drapion) patrolling nearby.
A Fire Stone For You
If you didn't pick up the Fire Stone earlier, you should do that now. Turn left, so you're facing west. Travel between the tall grass, towards the faraway wall. As you get closer, there's a glowing den on the right. Plus a Level 36 Sigilyph flying around. There will be a tree next to the wall (with a hidden Balm Mushroom) and the Fire Stone will be on the right.
Either way, head for the big tree directly north from the bridge that you used to get here. It's the big one, with lush green leaves. Once you reach the tree, stop for a moment to take a breather. Directly north, there should be a wide stretch of tall grass surrounding multiple bridge pillars. Depending on the weather, you might also see Hammerlocke in the far distance.
Head north, through the tall grass and underneath the giant bridge. If you're allergic to the tall grass, go left (west) until you've gone past the pond. By that point, there should be no tall grass in your way. Anyway, keep going and you'll transition to the next zone.
You can't catch Snorlax just yet, but during ordinary weather (when nothing happens in battle) there's a low chance of finding Munchlax above the tall grass. During snowy weather, you'll probably see a lot of Sneasel (Dark/Ice). Meanwhile, when it's extremely sunny, Litwick (Ghost/Fire) can be a random grass encounter.
This area occupies the space between two giant bridges, hence its name. By the entrance, if you came from the centre, there will be a den near the left and a strong Pokémon (it could be a tiny, but powerful Ribombee or a Galarian Linoone running in a square) on the right. Ahead, there's a lot of tall grass on the left and a body of water on the right.
Head directly north, through the tall grass, while keeping close to the water. Once you've gone past, there may be another strong Galarian Linoone running in a square. Next, turn slightly right and travel north-east to the nearby den. When you reach the den, stop for a brief moment. Remember where this den is, because you'll be coming back to it. We'll call it the "middle den".
While standing at this middle den, turn slightly right, so the camera is perpendicular to the giant bridges. Ahead, you should see a fancy building in the far distance. In front of you, there's another strong Pokémon (could be a Seismitoad). Head all the way (east) towards the building. Stop when you're roughly halfway there.
The tall grass on the right should be ending. Meanwhile, there will be a den and tree on the right. Search the flowers to the left of the tree for a Revival Herb. In front of you should be another tree, plus two NPCs standing side by side.
These fellas are the "Digging Duo". If you pay them using your Watts, they will dig for you. Before they start to dig, you must save your game, so you can't game the system. Each time they dig, they might find rare items like stones to evolve Pokémon or even Pokémon fossils.
You can tell them to keep digging, but they will stop if they hit something heavy. As far as we can tell, there's no advantage to telling them to stop digging, so you might as well keep going! Afterwards, any items they dug up will be automatically found in your Bag.
Once you've had enough fun, continue towards the building. When you get there, you'll learn it's another branch of the Pokémon Nursery. Here, you can do the exact same things you can do at the Pokémon Nursery on Route 5. There's also a Watt Trader nearby. While you're here, search to the right of the sign for a Poké Ball. Then go and check out the tree on the left to find two Tiny Mushrooms.
As a bonus, after speaking to the owner of the Pokémon Nursery, you can use the Flying Taxi to fly back here! If your Pokémon are tired and/or you're running low on supplies, you could use this opportunity to leave and come back later.
We can leave Bridge Field now, but let's go and pick up another useful item first!
Where's That Water Stone?
Turn your camera so you're facing away from the Pokémon Nursery. Now head forward (west), all the way along the dirt path. You'll go past the middle den. When the dirt path breaks up, keep traveling in the same direction, between (or through) the tall grass. Carry on between the two trees, all the way to the wall at the far end.
On the left, there's a huge stretch of tall grass. Turn your camera left, so it's facing the grass (south). Approach the tall grass, then turn the camera right (so you're looking west again). Now head through the tall grass, into the gap between the man-made wall and the natural wall. You'll reach a glowing den and an item capsule on the left, containing a Water Stone.
In any case, return to the middle den. Turn your camera so it's facing north, in the direction of the second giant bridge. Ahead, there are two trees next to one another. Go up to the trees. Once you get there, up ahead and to the left will be three berry trees in a line, being guarded by a Level 42 Greedent (an evolved Skwovet). Shake the trees if you're courageous.
Go past the three berry trees, underneath the giant bridge. Soon, you'll emerge in the next zone.
Some rare Pokémon have been spotted here! During ordinary, overcast and sunny weather, Cufant (a baby Steel-type elephant) has a low chance of appearing above the tall grass; but if there's a snowstorm, the chance is slightly higher.
When the weather is ordinary or overcast, Elgyem (Psychic) may appear in the tall grass, while Togepi (Normal) is a rare random grass encounter. Lastly, Bonsly (Rock) can be found walking around the tall grass during a sandstorm.