The Wayward Cave

This area has two entrances: one visible in the top portion of route 206, which is below the Cycling Path and the other hidden underneath the Cycling Path. To really explore this area, you need TM 70 Flash and HM 06 Rock Smash. You can get this TM from Oreburgh Gate. The wild Pokemon here are around level 20, so it is not a bad place to work at leveling up some of the weaker ones you will want to use when you reach Hearthome City and plan to take on the next Gym Leader with.

The Visible Entrance:
Once inside, use Flash so you can see the area more clearly. Next, walk upwards and you will find a breakable rock blocking your way to the left with a solid wall in front of you and smaller rocks blocking your way to the right. You will want to head upwards after you clear the rock. Then, when you reach the top, take another left and smash the rock that is blocking your way. Again, after you clear the rock, head upwards. Once again, you will reach a place with a rock you can smash to the left, take out the rock. Now you have some choice, up or to the left.

Going left, then down, then left, past a breakable rock, and down again takes you to a Dual Trainer battle.
Lass Cassidy and Youngster Wanye
One has three Pokemon and the other only has one. They open with a Buneary, lvl. 22 and Staravia, lvl. 17. The Staravia will likely open with Wing Attack and the Buneary with Frustration. The Buneary is apparently not too friendly with its owner, so Frustration is something to watch out for. The trainer will also likely use a potion on the Buneary when its health gets low, giving it a second wind. After the Staravia They will send out a Ponyta, lvl. 20. The Ponyta will attack with Flame Wheel and Ember, so keep on guard for potential burns. They finish with a Shellos, lvl. 20. It has decent defense and alright Water type attacks, so Fire, Rock or Ground types should likely switch out. But that will likely go down fast. Just past them, you can see a breakable rock and an item ball on the right. The ball has Tm 32, Double Team. As noted earlier, Double Team is a boost that increases the user's evasion, making them harder to hit. That is all you will find down this path, so head back to the breakable rock, up and to the right. Beyond the rock, going downwards, you will encounter another Dual Trainer battle:
Hikers Reginald and Lorenzo. The pair open with Geodude, lvl. 20, and an Onix, lvl. 22. Reginald will send out a second Geodude, lvl. 20 after you take his first one down. With either, they will likie boost their speed with Rock Polish, to try to gain an edge over you, then attack with Rock Throw. If you go past the pair of trainers, go to the far left rock and search it to find a Red Shard. That is everything in that direction, so return back to the intersection up and to the right. After that, head upwards.

To both the left and right you will find breakable rocks blocking your way.
To the left you will find another Dual Trainer match and an item ball beyond them containing a Revive.
The trainers are Camper Diego and Picnicker Tori. They send out an Aipom, lvl. 22, and Psyduck, lvl. 22. The Aipom may open with Swift, a low power, perfect accuracy move or Fury Swipes and the Psyduck will likely attack with Water Pulse, which will hit both of your Pokemon. After you take out either, they are done. That is all that is down that way. Head back to the intersection

To the right, follow the path to the right then downwards. You will find an item ball in the middle of the path with an Escape Rope inside it. After that, head to the right and down again. Break the rock blocking your way to the right. Again, two options are presented:

Going right leads to a Dual Trainer battle against Picnicker Ana and Camper Parker. They send out a Hoothoot, lvl. 22, and Buizel, lvl. 20. Buizel may have some speed, but it is very weak on the defenses while Hoothoot is a bit tougher. Buizel will likely attack with Water Gun. Hoothoot may use Uproar, an attack lasting a few turns which makes moves like Rest unusable or use Reflect to bolster their side's defenses. When you take out the Buziel, they send out a Shinx, lvl. 20. It was Bite and Spark, so keep on guard for Flinch or Paralysis. After them, there is a hidden Great Ball in the first rock on the left beyond them.

Going down leads you to a short route with a few rocks blocking your way. Keep going down and to the right, breaking the rocks along the way. You will need to head upwards after a while, then to the right. This leads to an intersection, this time going up and down. Downwards leads to a Dual Trainer battle against Collector Terry and Ruin Maniac Gerald. They send out a Gible, lvl. 22 and a Geodude, lvl. 19. The Gible may open with Sandstorm, which helps both of them as the Geodude gets defensive boosts from it. After you take out his first Pokemon Gerald will send out a Bronzor, lvl. 22. It will likely open with Hypnosis, so hopefully it will miss and not put your Pokemon to sleep. It will also try to Imprison your Pokemon, which will prevent it from using moves it has in common with itself. It will also attack with Extrasensory, a psychic type attack. Beyond them, you can find a Blue Shard hidden in  under the center rock along the bottom wall. Head on Upwards as far as you can, then head to the left. When you reach the end of this passage, you will see a girl with pink hair wandering around, talk to her. This is Mira, who got lost in the Wayward Cave. She wants to team up with you, and of course heal your Pokemon, to help her get out of the Wayward Cave. Again, just like last time with a second Trainer backing you up, this is a good place to level some of your Pokemon that need a few (or a lot) of extra levels.
Mira has a lvl. 26 Kadabra. It knows:
Shock Wave, Confusion, Telekinesis,

To get Mira back to the exit, head back to the right and downwards, taking the first left. Follow the route along until you reach the 3 way intersection. You will want to go upwards to progress. Follow this route until you reach a path that heads downwards. Continue down this way until you reach the next intersection, where you will want to head downwards, then to the right, keeping a steady downwards course. This will lead you through a few intersections, but it will take you right to the entrance.

Before you get too close to where you came in, remember to level up another other Pokemon you can. It only takes a little effort to get a Pokemon from mid 20's to low 30's with Mira helping you out. Once you are content with your party, head to the entrance to finish her little quest.

When you go down the Hidden Entrance:
With all the biking you will be doing, it is recommended to have a good stock of Repels/Super Repels to help ward off weaker Pokemon. Just remember to lead the party with a Pokemon that is above lvl. 20.
You will immediately see some stairs to the left after you use Flash to illuminate the area. Head down them to see a Sandy Slope you can bike up when you have hit “B” to change to the faster gear. Just give yourself a little space so you can reach top speed and sail up the slope. Just keep going straight over the second hill. After that, you will see a small ramp between two rocks to the right. Move to the far wall, line up with the ramp and ride toward it. Keep riding forward to complete the series of ramp-jumps and reach the item ball at the far end, which has a Max Ether inside it. After that, loop around the rocks and jump off the little ledge to your left. It helps to shift gears here briefly to have better control of you bike. Then, hop over the ramp to your immediate right, you will want to just move as far left as you can from this ramp then ride toward it, as you want to be on the other side of the ramp to continue exploring the area. Follow this path looping upwards to reach the next ramp, which is to the left. Shift gears and charge the ramp. After you cross the narrow ramp connecting two hills, you can see another pair of ramps, giving you access to an item ball. You will find a Grip Claw inside it. The Grip Claw extends the duration of multiturn attacks like Bind and Wrap. Jump the ramp back and head up the little mound using one of the pairs of stairs. Go up the Sandy Slope the northern stairs line up with and head to the right, just stay in the same gear and on your bike. Jump the first ramp and come to a stop to collect the item ball there, which has a Rare Candy inside. Head down over the ledge and repeat your travels to the left, up and right, this time continuing all the way to the right. The next part is tricky as you need to make a turn to hit the next ramp to jump while in the high speed gear. This can take a few (or a dozen) tries to get right. Some areas later in the game will be using this trick, so be wary. After that, head downwards, going up and down a few sets of stairs to reach the passage heading right. Take the stairs up. This leads to a small room with an item ball inside it. The item ball has TM 26, Earthquake, inside it. That is everything inside this part of the Wayward Cave, so head on out by hopping down the ledges just past the stairs to get back to the entrance.
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