Thanks TM. Right now I actually plants grass on the ground there. I do have an idea similar to yours but at different place (because it's lower over there)
See pic
I think since the area where I indicated is where water pool the most, I'll have to move all the rocks out, pull the liner up, and dig down, make a trench to the other side of the pond and put a french drain in there. But since that's a lot of work, I'm thinking I should try diverting the water from the gutter first and if that works i wont have to do french drain!! (And the clay dirt is NOT easy to dig.. )
I just want to enjoy my pond right now and not have to work and mess it up... so cross fingers!