{"id":473904,"date":"2026-09-24T06:06:27","date_gmt":"2026-09-24T06:06:27","guid":{"rendered":"https:\/\/www.newsbeep.com\/us-ca\/473904\/"},"modified":"2026-09-24T06:06:27","modified_gmt":"2026-09-24T06:06:27","slug":"humpback-whale-rio-seen-in-sacramento-river-heading-back-to-san-francisco-bay-marine-mammal-center-says","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/us-ca\/473904\/","title":{"rendered":"Humpback whale ‘Rio’ seen in Sacramento River heading back to San Francisco Bay, Marine Mammal Center says"},"content":{"rendered":"

RIO VISTA, Calif. (KGO) — A humpback whale that captivated onlookers after swimming deep into the Sacramento River last week is finally making its way back to the ocean, according to wildlife experts.<\/p>\n

The whale, which scientists have officially named “Rio,” was first spotted days ago hanging out near the Rio Vista Bridge.<\/p>\n

Its unusual presence so far inland sparked both awe and concern, as experts closely monitored its movements in the freshwater system.<\/p>\n

In a positive update, the Marine Mammal Center reported that Rio was last seen heading west through the Delta, moving directly toward the San Francisco Bay.<\/p>\n

While marine biologists say it remains unclear why Rio decided to venture so far from its natural ocean habitat, its recent westward trajectory is a highly encouraging sign that the whale is successfully navigating its way home.<\/p>\n

PREVIOUS STORY: Humpback whale spotted in Sacramento River near Rio Vista<\/a><\/p>\n

A humpback whale has been spotted in the Delta near Rio Vista Bridge on the Sacramento River. Witnesses say the whale came pretty close to shore.<\/p>\n

\"Now<\/a><\/p>\n

Copyright \u00a9 2026 KGO-TV. All Rights Reserved.<\/p>\n","protected":false},"excerpt":{"rendered":"RIO VISTA, Calif. (KGO) — A humpback whale that captivated onlookers after swimming deep into the Sacramento River…\n","protected":false},"author":2,"featured_media":473905,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[186359,101,103,102,104,106,105],"class_list":["post-473904","post","type-post","status-publish","format-standard","has-post-thumbnail","category-san-francisco","tag-186359","tag-san-francisco","tag-san-francisco-headlines","tag-san-francisco-news","tag-sf","tag-sf-headlines","tag-sf-news"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/posts\/473904","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/comments?post=473904"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/posts\/473904\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/media\/473905"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/media?parent=473904"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/categories?post=473904"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/tags?post=473904"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}