For a likely date (13 June 1993), cf. the clothes of the woman at the immediate right-hand side of the central man in picture 70 which also appear in picture 19. However, 13 June 1993 was a Sunday, and not a Friday (which is the day appearing in the caption to picture 69 and picture 70; however: the occurence of the word "Fridays" might have been related to an inside joke). I assumed the place to be identical to picture 19.
Original Spanish caption to this photo (pasted between picture 69 & picture 70):
Junio 93. Y que me dicen de los viernes de moda!
June 1993. What about the Fridays of fashion!
To download the original (cropped) scan in full quality:
Download the file in .TIFF format (cf. also "Download options").
With thankful credit to Damaris Cerdas (a Costa Rican citizen who photographed and annotated her volunteering experience to the Solomon Islands in 1993) for having given me permission to digitize her photo album (August 2016) and publish 98% of it under a Creative Commons BY-SA 4.0 license, which I have done here.