There is also Mirage Island. To get there fly to Pacifidlog Town. Go into the house at the low left corner. Talk to the man at the far fight. He will tell you whether he can see Mirage Island or not.
Every day a random id number is picked. If one your pokemon's id number matches the one that is picked have it in your party and talk to that man. He will then tell you that he can see Mirage Island. There is no way of knowing the id number of the day.
i did prefer electrode since he(it, she whatever) got great GREAT speed, i will also provide a move set
electrode item: who cares rain dance thunder thunder wave explosion
rain dance makes thunder, a 120 base power attack 100% accuracy thunder wave is good because of PAR i have nothing to say about explosion........
Electrode will be teh dead before he can set that up... As soon as he rain dances, a Ground Pogey, specifically Wak, will come out and sweep him. Explosion is always a must. Since Trode has the highest speed in the game (I think), he can boom before anyone can kill you.