Tarzan, Texas is a small unincorporated community located in Martin County. The region experiences a semi-arid climate, characterized by hot summers and mild winters. The average high temperature in the summer reaches around 95°F (35°C), while in winter, it drops to around 55°F (13°C). Precipitation is relatively low, averaging around 16 inches (40 cm) annually.

Hydrologically, Tarzan is situated in an area with limited water resources. It relies on groundwater for its water supply, primarily from the underlying Edwards-Trinity Aquifer. The hydrology constituents of this area consist of limestone, dolomite, and sandstone formations, which contribute to the region's water storage and flow patterns.

While Tarzan may be limited in terms of infrastructure and amenities, it offers several outdoor recreation opportunities. The surrounding natural landscapes provide a picturesque setting for activities such as hiking, bird-watching, and nature photography. The nearby Colorado River and local reservoirs offer opportunities for fishing, boating, and water sports. Additionally, the region's vast open spaces are ideal for camping and stargazing, providing a tranquil escape from the urban hustle and bustle.