9 am to 12 pm at Buena Vista Creek trail — 1280 E. Hacienda Drive, Vista. Here is the link to register: Creek To Bay – I Love A Clean San Diego Registration opens on April 1st. All volunteers either need to bring their signed waiver with them or we will have waivers there that day for them to sign.9 am to 12 pm at Buena Vista Creek trail — 1280 E. Hacienda Drive, Vista. Here is the link to register: Creek To Bay – I Love A Clean San Diego Registration opens on April 1st. All volunteers either need to bring their signed waiver with them or we will have waivers there that day for them to sign.