The phrase "a long dive" is correct and usable in written English.
It can be used in contexts related to activities such as diving, either literally in water or metaphorically in discussions or analyses that require deep exploration.
Example: "After a long dive into the ocean, the divers emerged with fascinating discoveries about marine life."
Alternatives: "an extended plunge" or "a deep dive".
This is a long dive from the Odyssey.
That was when he jumped, he explained to his mother, his thin arm making a long dive over his rumpled pajamas toward his toes.
Finally, the flight data recorder shows that after a long dive, the elevators pointed in opposite directions, a sign that the two men were working their controls in opposite directions, American investigators say.
In addition, McKinlay said, divers are careful not to eat anything unusual at dinner the night before a long dive — a non-trivial challenge at Carrabba's, the restaurant they'd chosen for the evening — and, in the morning, to pay close attention to their breakfast choices, coffee drinking, and bathroom scheduling.
According to the safety diver, a man named Tom Steiner van den Ouweelen, her lanyard kept catching on the markers attached to the rope every five metres and she lost "fifteen or twenty seconds to freeing it, both up and down, which is very much for such a long dive".
Coming down on the island in a steep, long dive, he had misjedged his distance and come in too low.
A quick single and a long, sliding dive just defeats a throw from the slips.
Once locked onto a target, red-tails attack in a long, graceful dive, feet outstretched ready to pluck their prey from the ground in one continuous, sweeping motion.
The shunting mechanism allows partly deoxygenated blood to bypass the lungs (which are not useful anyway during a long, deep dive) and go directly back to the muscles, where working cells draw still further oxygen from it.
ASBURY PARK, which took a long slow dive from splendor to dereliction during the last half of the 20th century, appears at last to be on the brink of ascent.
Only executing a "Split S"; a long curving dive that the Spitfire could not follow, could his aircraft escape back to France at low altitude.
