A high tide murder / Emily George.

Enhanced descriptions from Syndetics:

While flying high on the success of her cannabis cafe, Chloe Barnes once again finds herself on the trail of a low-down murderer in this cozy mystery from Emily George.

THE FIRST-EVER CULINARY COZY MYSTERY SERIES WITH A (LEGAL) CANNABIS TWIST!

What a long, strange trip it's been for Chloe. After her dream of becoming a Parisian pastry chef-and a wife-crashed and burned, she returned home to the seaside town of Azalea Bay, California and opened a cannabis cafe. Despite some residents' misgivings about how such a business may affect the community's reputation, Baked by Chloe has become a popular destination for tourists and locals alike. Nothing mellows out people like sweet edibles and frothy drinks with a dash of CBD.

But when it comes to surfers, the only high they want to ride is on a wave. The annual summer Azalea Bay Pro Challenger Surf Competition is underway, and fan favorite Aaron Gill is treading water. Plagued by professional and personal pressures, he finds himself no longer a top contender, and everyone is saddened when he takes his own life.

But his best friend Ethan Wilson knows that despite Aaron's difficulties, suicide was not on his mind, and he begs Chloe to investigate. Against her better judgment, Chloe dives in and discovers Aaron was surrounded by people motivated enough to help him wipe out-permanently . . .

"This fun and fact-filled thematic entry into the cozy mystery genre has it all... With increasing acceptance of cannabis as a supplement to medical care, this series starter helps normalize its use and promotes safe consumption, complete with designated drivers. Highly recommended." -Library Journal, STARRED review for A Half-Baked Murder