Spiders were studied on two sandy islands in the outermost part of the SW archipelago of Finland: Korppoo Jurmo (59°50′N, 21°37′E) and Dragsfjärd Örö (59°50′N, 22°20′E). The main collecting method was pitfall trapping. Typical, and often locally abundant, species on sandy and/ or gravel shores were c.g. Arctosa cinerea, Alopecosa fabrilis, Pardosa agricola, Xerolycosa miniata, Zelotes longipes, Z. praeficus, Callilepis nocturna, Lasiargus hirsutus, Trichoncus hackmani, Microlinyphia impigra, Steatoda albomaculata, Philodromus fallax, Phlegra fasciata and Sitticus saltator. On dry heath meadows the following species, in addition to many of the above-mentioned spiders, were typically caught: Zelotes electus, Alopecosa cuneata, Pardosa agrestis, P. palustris, Trichopterna cito and Lepthyphantes decolor. The material included three species listed in the Finnish Red Data Book, all in need of monitoring, i.e. Zelotes electus (abundant), Metapanamomops kaestneri (locally abundant) and Acartauchenius scurrilis. Also many other rare species, like Jacksonella falconeri, Argenna subnigra and Pseudicius encarpatus, were found.