The San Juan Nature Institute will sponsor a third Adult Field Workshop with geologist Michael Yeaman on Sept. 20, in partnership with Washingto State Marine Parks, Outer Island Expeditions, and Shearwater Adventures.

Yeaman will lead a group of nine to Sucia Island aboard Outer Island’s Blackfish, and then on a hike and an afternoon kayak trip on Shearwater Adventures’ kayaks around portions of Sucia.

Registration is required, with the trip costing $175 per person. Background information on the trip agenda, meeting details and a list of what to bring will be emailed in advance.

To register, call 376-4699. For further informations, go to shearwaterkayaks.com or sjnature.org.