Originally Posted by
Ald1
Bridges OK for bikes. Must see and ride,must avoid advice? Tips?
Originally Posted by
surak
There are pedestrian trails on both the 520 and I-90 bridges so those won't be an issue.
I would put one of those bridges on the must see list. I've only done the I90 trail, I assume 520 is basically the same experience. It's beautiful on a clear day. They're floating bridges, the trail isn't very far above the water in the middle, the I90 trail is on the N side of the bridge so gives a fantastic view of Mount Baker and the northern Cascades as if they're rising up out of the water. And then Rainier towering over the other side.
Personally I would spend the miles riding around the lake vs Mercer Island. But both options are fun and scenic, there isn't a wrong choice.