cover foundation assessment, landslide investigation, excavation planning, groundwater source exploration, geotechnical parameter determination, and monitoring of vibrations and blasts. SIHAYA also performs borehole logging, dynamic penetration testing, radon and corrosion surveys, and geophysical studies for archaeology, mining, speleology, and waste sites. In addition, it develops and uses proprietary geophysical instruments and software and offers practical training courses in applied geophysics for students and professionals.