Friend: What did you do today? LAist: Well, we started the day off at the LA River Center in Cypress Park. Then headed to the Valley over to the Sepulveda Basin, where the river is at its wildest. Next was the verdant Glendale Narrows across from Griffith Park to see the new mini-parks. After lunch, we headed to the Arroyo Seco confluence where trash was everywhere, yet is near where LA was founded. Then......