You can only go twice throughout the whole game, once after you beat the sidowido or catch it and then a second time after you beat the gym where the red garados is by
You get it by winning the bug catching contest.
The National Park Contest is held on Tuesday and Thursday.
The Shiny Stone does not exist in Pokemon Gold, Silver and Crystal it was added when Diamond and Pearl came out and if you're referring to Pokemon HeartGold, the Shiny Stone can be found at the National Park and can be won if you come in 1st place in the Bug Catching Contest.
You get it in the Bug Catching Contest
ask a friend
above goldenrod city in jhoto
No day, it will just come randomly
Tuesday, Thursday and Saturday.
Scyther and Pinsir are the best that you can find in the bug catching contest. Well i don't know if you can find a heracross or not...... sorry if i mistype the pokemon's name
In heart gold, you win the bug catching contest by catching the best bug type Pokemon. The score of the Pokemon you catch is based upon both it's stats and the amount of Hit Points it has left when you catch it.
pokethlone contest points or pick up ability
any time if you have shaymin in your party or 5.00pm-12.30pm