OK, so “goddess” is a bad translation, but “female kami tour” doesn’t have the same ring.
The July 14th issue of Jinja Shinpō had a short article about three jinja on Awaji Island and a neighbouring small island (in Hyōgo Prefecture, between Honshū, the main island of Japan, and Shikoku). These jinja all enshrine female kami, have female priests, and are quite close together, so they decided to team up.
They created a set of three special goshuin (御朱印), along with a webpage, to encourage people to visit all three jinja. The three goshuin, if put together, have a picture of Awaji Island in the background, and if you collect all three you also get a special piece of paper to mount them on. (You can see the three goshuin put together at the top right of the webpage — the white space at the top is for the red stamps and writing that make the paper into a goshuin.)
The three kami are Hayaakitsuhimë-no-kami (速秋津比賣神), Ichikishimahimë-no-mikoto (市杵島姫命), and Okinagatarashihimë-no-mikoto (気長足媛命). (If you look at the kanji, you will see that they all write “himë” differently. There are a lot of choices for this word.) While Ichikishimahimë-no-mikoto is the only kami at her jinja (Itsukushima Jinja), Okinagatarashihimë-no-mikoto is enshrined with Homudawakë-no-mikoto and Tarashinakatsuhiko-no-mikoto at Nushima Hachiman Jinja, and Hayaakitsuhimë-no-kami is enshrined with Hayaakitsuhiko-no-kami and Homudawakë-no-mikoto at Yuraminato Jinja. The other kami are all male, and Homudawakë-no-mikoto is normally regarded as the primary kami of a Hachiman Jinja — but not always. (Fukumo Hachimangū also prioritises Okinagatarashihimë.) Thus, the three priests made a conscious decision to emphasise the female kami for this project, almost certainly because they are women themselves. Two of them are the chief priests of their jinja, and the third is the senior priest, and appears to be the daughter of the chief priest (same family name, and that would be normal — although she could equally be a niece or granddaughter).
This sort of goshuin project is fairly common these days, although I don’t know how effective it is — they have only printed 300 of each goshuin, so they are obviously not expecting hordes of people. In this case, it looks as though they decided to take advantage of the unusual fact that three jinja in the same area had female priests, and all enshrined at least one female kami as well, to make their project stand out a bit.
I hope that these sorts of projects do work out, but I suspect that jinja with priests energetic enough to try them will find some way to prosper, even if the first attempt fails.