Pokémon Omega Ruby and Alpha Sapphire/Route 103

Route 103
A small grassy area with a small sea, Route 103 is much like Route 101. At the very top of the map stands Brendan or May. Chat to them and they will, of course, challenge you to your first Trainer battle. Your rival automatically picks the Pokémon with the type advantage against yours; players who selected Mudkip will face Treecko, Treecko faces Torchic, and Torchic faces Mudkip. However, if you've leveled up even just once, you will have a significant advantage. Your rival's AI isn't particularly bright, and you should just be able to hammer your way to victory. If you're having trouble, remember to use your Potions.

Once you've beaten them, they'll spout praise about you and suggest heading home. Follow them back to Littleroot--Route 102 is still blocked--and find them in Birch's lab. The professor is pleased at your victory and gives you a neat little device called a Pokédex, which records data on every Pokémon you've seen or caught. He wants you to fill up every page--in other words, catch 'em all!

Your rival is very excited by this development and gives you ten Poké Balls. Now your journey really begins!