Pohutukawa: Post Excerpts

Hello,

I’m doing some changes to my site and I decided to show my kayak expedition journal which consists of 112 posts, half of which are posts displaying expedition pictures. http://1000ktotokyo.michaelreid.global/

Initially, they were grouped by category and accessible via a link on the sidebar. When I used to click the sidebar, all the text posts would show their post excerpts; however, now that they are on the front page, they will no longer show the excerpts, only the full articles (some of which are absurdly long).

How can I show the post excerpts on the front page?

PS: I’m aware that I can manually add the

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to each post, but that’s a ton of posts that I have to once again go through.

Any help would be greatly appreciated

Thanks