The Strait of Juan de Fuca is water. 

The Strait of Juan de Fuca is a long path of water. 
The water can be rough. Big waves come from the wind. 
Many animals live here. Big whales swim in the deep water. Some whales stop here to rest. 
Boats called ferries carry cars and people. They cross the water every day. It is a busy place for sea life.
The Strait of Juan de Fuca is a long path of water. 

The weather here can be rough. Strong winds come from the Pacific Ocean. These winds make the waves large and choppy. Because of this, boats must be careful. 
Many animals live in these waters. Humpback whales swim near the western end. They are often seen from June to November. Killer whales also live here. They eat salmon and sea lions. Gray whales use the strait as a rest stop. They swim here between March and May. They eat small things on the sea floor.
Ferries carry people and cars across the water. One ferry named the Coho travels between Washington and British Columbia. In 2018, it carried many passengers. The strait is a very busy place for sea life and boats.
The Strait of Juan de Fuca is a wide channel of water. 

The weather in the strait can be quite wild. Strong winds usually blow in from the west. These winds come from the open Pacific Ocean. Because of this, the waves are often rough and choppy. The water is much more active here than in the protected areas further inland. Sometimes, the weather gets so bad that officials issue storm warnings. Small boats must be very careful when they travel through these waters. 
People have been exploring this water for a very long time. A fur trader named Charles William Barkley named the strait in 1787. He named it after a Greek navigator named Juan de Fuca. Some stories say Juan de Fuca sailed in a Spanish expedition in 1592. Other people believe a man named Francis Drake saw the area much earlier. Between 1789 and 1791, many explorers mapped the area in great detail. They included names like Manuel Quimper and José María Narváez. These explorers helped people understand the shape of the coast.
Many amazing animals call this strait their home. Humpback whales can be seen near the western end from June to November. Killer whales live here all year round to eat salmon and sea lions. Gray whales use the strait as a rest stop during their long trips. They swim through the area between March and May. They like to eat small creatures found on the sea floor. Even small seabirds like common murres swim here to find fish. It is a very important place for many different kinds of life.
Travelers use the water to move between countries every day. A ferry named the Coho carries people and cars from Washington to British Columbia. This ferry has been running since 1959. In 2018, it carried 475,000 passengers across the water. There are also passenger-only boats like the Victoria Clipper. The strait is also part of a larger area called the Salish Sea. This name was made official in 2009 to describe the whole region. It helps people think of all these connected waters as one big system.
The Strait of Juan de Fuca is a vital maritime channel. 

The physical boundaries of the strait are very specific. The Pacific Ocean entrance is defined by a line between Cape Flattery and Tatoosh Island in Washington. This line connects to Carmanah Point on Vancouver Island. The northern boundary follows the coastline of Vancouver Island. It moves from Carmanah Point to Gonzales Point, then follows a line east to Seabird Point. It continues through Cattle Point and Iceberg Point to Rosario Head. The eastern boundary moves south from Rosario Head across Deception Pass. It follows Whidbey Island down to Point Wilson on the Quimper Peninsula. The northern coast of the Olympic Peninsula forms the southern boundary of the channel.
Climate patterns in the strait are a subject of scientific discussion. The Köppen system, which is a way to classify climates, labels the area as Mediterranean. This is because the region experiences dry summers. However, most regional climatologists prefer to call the climate oceanic. The weather is heavily influenced by the Pacific Ocean. Strong westerly winds and waves make the seas much rougher than the protected waters inland. This exposure often leads to small-craft advisories and gale warnings. Rainfall also varies across the region. The west end experiences temperate rainforest conditions. Meanwhile, the east end near Sequim receives much less rain.
The history of the strait involves many different explorers and theories. Most sources state that Charles William Barkley named the strait in 1787. He was a maritime fur trader and captain of the Imperial Eagle. He named it for Juan de Fuca, a Greek navigator. Records suggest Fuca sailed in a Spanish expedition in 1592. However, some historians like Samuel Bawlf suggest Fuca's story was a fabrication. Some believe Francis Drake may have been the first European to sight the entrance in 1579. Detailed exploration occurred between 1789 and 1791. Explorers like Manuel Quimper and José María Narváez helped map the area. There was also a dispute regarding whether John Meares named the strait in 1788.
Today, the strait is a busy corridor for transportation and commerce. An international vehicle ferry named the Coho operates between Port Angeles and Victoria. This ferry has been running since 1959. In 2018, the Coho carried 475,000 passengers and 130,000 vehicles. Other passenger-only ferries also serve the region. The Victoria Clipper travels from Seattle to Victoria. The Victoria Express also operated on this route for many years. These connections help link the communities of Washington and British Columbia. 
The strait is also a critical habitat for diverse marine life. Humpback whales can be seen near the western end from June to November. Resident killer whales live in the strait year-round to eat Chinook salmon. Transient killer whales move through the area to hunt sea lions and gray whales. Gray whales use the strait as a "rest stop" during their migration. They swim between Baja California and Alaska each year. They feed on small marine creatures on the seafloor during this time. The best time to see this migration is between March and May. Even seabirds like the common murre use the strait to find food.
Finally, the strait is part of a larger geographic and political conversation. A maritime boundary dispute exists between Canada and the United States. This dispute concerns the seaward boundary extending west from the mouth. Both nations have proposed lines based on equidistance, which means equal distance from the coasts. However, the government of British Columbia argues for a different boundary. They suggest using the Juan de Fuca submarine canyon as the limit. This is based on the principle of natural prolongation. Additionally, the term "Salish Sea" was officially adopted in 2009. This name serves as a collective term for the Strait of Juan de Fuca, the Strait of Georgia, and Puget Sound.
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