Without scuba gear, the depth a person can dive depends greatly on their training and experience. On average, a trained freediver can comfortably dive between 30 to 40 meters (about 98 to 131 feet) on a single breath. Beginner freedivers might reach around 10 to 20 meters (33 to 66 feet), while intermediate freedivers can go down to 20 to 30 meters (66 to 98 feet). These depths rely on holding one's breath and adapting to pressure without breathing apparatus. For highly trained professional freedivers, the depths can be much more extreme. The world record for a no-limits freedive is 214 meters (702 feet), set by Herbert Nitsch in 2007, and the constant weight freediving record is 130 meters (427 feet) set by Alessia Zecchini in 2019. However, such extreme dives require years of professional training and pose serious risks. For most people without specialized training, diving to around 20-30 meters is achievable, but diving deeper without scuba gear becomes increasingly difficult and dangerous due to the need to hold breath and withstand pressure changes. In summary:

• Average trained freedivers: 30-40 meters (98-131 feet)
• Beginners: 10-20 meters (33-66 feet)
• World record dives: up to 214 meters (702 feet) by elite professionals

Always remember that freediving demands careful training and safety measures to avoid risks such as hypoxia or pressure-related injuries.