u/Accurate-Yoghurt2695

I need the best japan raid spot to include for my fly switch. My current plan is to do japan in the morning, zaragoza midday and sao paulo in the evening. I couldnt find good spots in japan. I heard shibuya is good but there were like 5 gyms which I think is pretty lame. Are there any better spots for japan? Something in the same timezone? Thank yall in advance!