1. The high seas are open to all States, whether coastal or land-locked.
Freedom of the high seas is exercised under the conditions laid down by this Convention and by other rules of international law. It comprises,
inter alia, both for coastal and land-locked States:
(a) freedom of navigation;
(b) freedom of overflight;
(c) freedom to lay submarine cables and pipelines, subject to
Part VI;
(d) freedom to construct artificial islands and other installations
permitted under international law, subject to Part VI;
(e) freedom of fishing, subject to the conditions laid down in
section 2;
(f) freedom of scientific research, subject to Parts VI and XIII.
2. These freedoms shall be exercised by all States with due regard for
the interests of other States in their exercise of the freedom of the high seas, and also with due regard for the rights under this Convention with respect to activities in the Area.
Source: UNCLOS