Nestinarka Beach is generally considered safe for swimming and is a popular family destination in Tsarevo. As one of the main beaches in the area, it typically has good infrastructure during the summer season. The sandy bottom and gradual depth make it suitable for swimmers of varying abilities. The beach's popularity means there are usually other people around, which adds to the sense of security. However, always observe weather conditions and any posted warnings. The Black Sea can occasionally have strong currents or jellyfish, so check local conditions before entering the water.

The optimal time to visit Nestinarka Beach is during the summer months from June through September, when you'll enjoy the best weather conditions and warmest sea temperatures. Peak season in July and August brings the liveliest atmosphere but also the most crowds, as this is a famous beach in Tsarevo. For pleasant weather with fewer tourists, early June or September are excellent choices. The beach infrastructure and services are fully operational during these summer months. Outside this period, the beach remains accessible but facilities may be limited and water temperatures cooler.