This study examines the differences in locomotor abilities of children aged 5-6 years in two locations, namely coastal and mountainous areas in Kebumen City, Indonesia. This is important because children's locomotor outcomes are still poor and there has been no identification of locomotor abilities judging from previous studies that only examined manipulative movement abilities. Overall, this study contributes greatly to future research by providing important insights into how environmental and geographical factors interact with children's physical development, which in turn can aid in the creation of more effective policies and interventions to support holistic child development. Using descriptive research methods, the population was 40 schools specifically for coastal and mountainous areas, then sampling was carried out in 2 stages, namely using cluster random sampling techniques and then purposive sampling. The sample size was 130 with details of 65 children in coastal areas and 65 in mountainous regions. This instrument has been validated and reliable on 135 children in Indonesia with a validity result of 2.27 > t table 1.65 and reliability of 0.765. The statistical test results showed a p value = 0.013 which means that there is a relationship between children's locomotor abilities with geography in the two different locations, namely mountains and coasts. The average child's locomotor ability in coastal areas was found to be superior compared to mountainous areas.