First of all, you'll see a small gap in the white fence to your north as you enter. Move through the gap and follow the path back west into Pinwheel Forest. At the end is a hidden Ultra Ball which you can grab. Do so then head back into Nacrene.
Head east until you hit the Pokemon Center. When you do, move down and enter. Heal your Pokemon and stock up on items if you need to. Once you're done, head back outside. You guessed it, exploration time! Unfortunately there's not a whole lot to do, which makes us sad. Oh well.
From the Pokemon Centre head west and enter the first house that you come upon. Inside is a bald man who happens to be the final Move Tutor ! How wonderful. Talk to him if you want to see his wares. This one teaches moves in exchange for Green Shards.
|6||Worry Seed, Gastro Acid|
|8||Helping Hand, After You, Magic Room, Wonder Room, Spite|
|10||Recycle, Trick, Stealth Rock, Outrage|
|12||Endeavor, Sleep Talk, Skill Swap, Snatch|
The man on the west side of the bottom floor also runs a battle shop which has some nice Battle Items that you can buy. Feel free to take a look.
|X Speed, X Attack, X Defend, Guard Spec., Dire Hit, X Accuracy, X Special, X Sp. Def|
Once you've bought all you want, leave the house. From there, continue west along the old railway tracks until you reach a white fence. When you do, turn your Dowsing MCHN on and use it to find the hidden PP Up . Move back east into the main part of town once you have it.
When you reach the Pokemon Center, move north up its left side. When you reach the road again, move west to the cafe. When you reach it, enter the building. Inside, move down the steps to the lower level and talk to the woman there.
She'll give you a Dirty Handkerchief if you answer with 'Yes' when asked. Yay? Head back outside and head east down the road. When you reach the Museum (the large old-style building), enter it. Head on through and you'll be stopped by a Scientist.
This guy's Lenora, an old Gym Leader's husband, if you happen to remember that. He'll talk with you and Lenora will appear. She will offer you a fossil. If you select the first option you'll be given a Cover Fossil , which can be used to regenerate Tirtouga.
If you select the second option you'll be given a Plume Fossil , which can be used to regenerate Archen. When you regenerate a Pokemon, it will become yours. Pick whichever one you want and confirm that you want it and it'll be given to you. Unfortunately you only get one, but we can't be too greedy, now can we?
After you've received a fossil, you'll be given a short tour of the museum by Lenora's hubby. You'll stop at the stairs. You can head up them and explore the old gym if you want, but there's nothing to do there. Instead, we'd recommend heading back to the entrance.
If you talk to the woman at the right of the two counters, she'll take your fossil away and use it to regenerate a Pokemon. Clear a spot in your party by depositing a Pokemon in the PC at the Pokemon Center then come back and talk with her again to receive your Pokemon. Yay!
It will start off at Level 25, so if you want to use it it's going to take a bit of training before it's going to be useful. Exit the museum. If you don't want to use it, you can swap it back with the Pokemon that you deposited in your PC. Once you've done all that you've completed all there is to do in Nacrene City!
Time to head through the eastern gate leading out of town and into Route 3 .