There isn't just 1 park there are a few other parks too.
The mountain park
There is a park near the mountains and 2 find the mountains look for a sign that looks like it has green mountains on it and the sign should say: Go to the mountains? Touch the yes button and u will arrive at the mountains. Keep walking your dog until u see a sign thats dark blue(or watever background colour it is)and has a dog on its own on it. The sign should say:(or something like this)Go to the park? Touch yes and u will arrive at the park and u can do watever u would like to do(disc practice etc.).
The seaside park
If u are walking in the town u should be able to see a sign that looks like the beach touch yes to go there. Soon while u are walking along the seaside u will see a sign[which will look exactly the same as the mountain park sign] if it has a dog on its own on the sign touch yes and u will arrive at the park.
These are the only parks i know of so if i hav got this wrong u are welcome to correct and edit this answer.
:D
You go on the pedometer and walk with it closed or shake it and you meet people while doing that or get play coins.
In the town that u start in don't go to any other paths
you can see mountains,beach,downtown and the neighborhood i know cuz i have the game
Unfortunately Nintendo added no weather in Nintendogs, however, in the new Nintendogs + Cats when you go for a walk there is sometimes a notification saying: 'It looks like it has been raining. Watch out for puddles!' and when you meet up with someone on a walk they might say: 'Yesterday my (dogs name) got covered in mud when we were out walking. Watch out for puddles!'
walk there
you find it on your walk
do what it says to do
trainer points and walks mainly you can trade on bark mode
You can leave it on the main menu and just close it and walk around and it will give you money. Another thing you can do is go on pedometer on nintendogs plus cats. That would give oi money too. hope this helps so you can have more fun on your 3ds!?
you keep going on each day and walk your dog and enter competitions and win and you will earn points to get earn a new dog on your menu
Its a suprise gift on a walk
find it on a walk