Research on children's risky play and young children's risk taking is a relatively new research area that has drawn the attention of many researchers in the last decades. Nevertheless, to our knowledge, no earlier studies have measured the prevalence of risky play when children can freely choose what to play, with whom, and where. Most research on risky play has also exclusively focused on outdoor play. This study aims at examining the occurrence and characteristics of children's risky play, indoors and outdoors, in early childhood education and care (ECEC) institutions. Children (N = 80) were observed in two-minute sequences during periods of the day when they were free to choose what to do. The data consists of 1878 randomly recorded two-minute videos, which were coded second by second for the occurrence of several categories of risky play. Results revealed that risky play was registered in 10.3% of the total data material. The data is further analysed to explore distribution among different types of risky play, as well as differences between gender, age and environment (indoors vs. outdoors).