uncharted waters

Translations
неизведанные воды
The company is venturing into uncharted waters with its new product line.
Компания выходит в неизведанные воды с новой линейкой продуктов.
Definitions
Uncharted waters refers to a situation or area that is unfamiliar, unknown, or unexplored, often implying a sense of risk or uncertainty in navigating through it.