The Selection of Fishing Spots for Sea Fishing

Sea fishing is essentially no different from freshwater fishing. Anglers fishing in the same waters with the same equipment often experience significant differences in their catches. Apart from variations in fishing skills, seasonal changes, wind direction, and bait selection, the most crucial factor is the choice of fishing spots. Having engaged in sea fishing for many years, I have gained some experience in selecting fishing spots for both rock fishing and boat fishing. This article aims to provide some insights for fellow anglers.

I. Selection of Fishing Spots for Rock Fishing

Rock fishing originally referred to sea fishing conducted along coastal areas, such as mountain capes, cliffs, and reefs extending from the continental shelf into the sea. However, with the development of sea fishing in recent years, modern rock fishing has expanded beyond traditional locations to include offshore islands and reefs. It is also divided into heavy rock fishing and light rock fishing depending on the method used. Regardless of these distinctions, the correct selection of fishing spots remains the fundamental condition for successful rock fishing.

1) Choosing Fishing Spots for Cliff Rock Fishing

This fishing method typically involves standing on a seaside cliff. The equipment usually consists of multiple long-distance casting rods, with casting distances exceeding 60–70 meters. The rod tip is positioned at an angle of approximately 45° to the sea surface, and sea sandworms, which can withstand ocean currents, are commonly used as bait.

The key to selecting the right fishing spot for cliff rock fishing lies in identifying “fish routes.” Given the elevated vantage point of sea cliffs, anglers can use their eyesight to locate suitable fishing areas.

Most sea fish tend to inhabit and feed around underwater reefs, marine vegetation, and ocean current edges. Anglers can determine fishing spots by observing water color changes and underwater shadows. The general seawater color is azure blue, while scattered patches of dark blue or black-blue often indicate underwater reefs or marine vegetation. Additionally, the presence of moving, curved white streaks on the water’s surface marks ocean currents.

Ideal fishing spots for cliff rock fishing include reef edges, boundary areas between reefs and open water, and regions influenced by ocean currents. These locations are prime fishing spots for the following reasons:

• Food Supply: Reefs and marine vegetation provide shelter for small crustaceans such as oysters, shrimp, and crabs, which attract fish.
• Habitat & Protection: Fish seek refuge in reef crevices, gullies, and caves to avoid predators.
• Oxygen-Rich Waters: Ocean currents provide higher oxygen levels, stimulating fish to feed more actively.

2) Choosing Fishing Spots for Reef Rock Fishing

This method involves fishing from reefs and rocky outcrops that emerge during low tide. Typically, anglers use one or two long rock fishing rods, casting their lines vertically at a 90° angle to the water. However, a crucial aspect of this technique is carefully monitoring tidal changes and fishing during the lowest tide levels.

Fishing spots should primarily focus on deep gullies and crevices between rocks. The key to this method is “mobile fishing,” which means anglers should not remain in a fixed position like in cliff rock fishing. Instead, they should constantly adjust their fishing spots by moving deeper toward the retreating tide’s lowest point (while ensuring safety).

This strategy works because, as the tide recedes, previously submerged reefs become exposed, revealing underwater gullies and rock formations. As shallow-water fish retreat to deeper channels before the tide fully withdraws, these deep gullies and crevices become ideal fishing spots. I have successfully used this technique in areas such as Bangchui Island and Shicao in southern China, often experiencing substantial catches by “chasing the tide” (adjusting fishing positions according to tidal movements).

3) Choosing Fishing Spots for Island and Offshore Reef Rock Fishing

This fishing method requires specific geographical conditions—such as offshore islands or reefs—which necessitate transportation by boat. Compared to shore-based rock fishing, offshore fishing locations tend to have better fish populations due to their remoteness and lower fishing pressure.

Fishing spots are generally found where ocean currents pass through islands or prominent offshore reefs. These areas are ideal because:

• They have deep waters with numerous underwater gullies and channels.
• The relative isolation results in higher fish densities.
• Islands and reefs serve as natural rest stops for migrating fish, where they feed intensely before continuing their journey.

Fishing spots should be selected based on the specific fishing technique being used. Since offshore islands and reefs are located in deep waters, casting distances are usually shorter, and reef formations are easier to locate. Anglers should aim for:

• Steep drop-offs and deep channels between large submerged reefs.
• Rock formations where waves break and generate white foam, casting into the relatively calmer waters just beyond.
• Horseshoe-shaped bays with sandy bottoms, which are prime habitats for valuable snapper species.

A great example of this technique occurred at Elephant Trunk Reef off the southwest coast of Lu Island, where I used this method to catch several 1.5 kg black seabream, making for an exhilarating experience.

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II. Selection of Fishing Spots for Boat Fishing

Boat fishing offers an entirely different experience—floating on the vast sea, casting multiple rods, and awaiting the thrilling moment when a fish takes the bait. This style of fishing has grown increasingly popular due to its relaxation, excitement, and broad coverage of fishing grounds.

Since boat fishing presents challenges in positioning due to ocean currents and wind, selecting the right fishing spots is crucial.

1) Choosing Fishing Spots for Anchored Boat Fishing

Because fishing boats drift due to currents and wind, it is often difficult to maintain a fixed position. To prevent losing a productive fishing spot (“fish route”), anglers commonly drop anchor to keep the boat stationary.

Ideal fishing spots for anchored boat fishing include:

• Large underwater reefs and deep-sea channels.
• Areas with rocky seabeds, which can be located using weighted fishing rigs or experience-based observation of coastal topography.

• Island edges and submerged reef formations, identified by studying island orientation.

For example, if an island extends eastward into the sea, its northern and southern edges are likely to have deep gullies and hidden reefs, making them prime fishing locations.

2) Choosing Fishing Spots for Drifting Boat Fishing

Drifting boat fishing, where the boat moves with ocean currents instead of anchoring, is particularly effective near coastal island channels. These waters often contain deep underwater gullies and reefs, where fish hide from strong currents while actively feeding.

Fishing while drifting allows anglers to cover a larger area, increasing their chances of encountering large fish in areas of concentrated fish movement.

3) Choosing Fishing Spots in Floating Raft Areas

Many marine aquaculture farms are located 500–2000 meters offshore, where floating rafts are used for shellfish and fish farming. Over time, submerged raft structures, support ropes, and sunken debris create artificial reefs that attract wild fish.

Key spots in these areas include:

• The bases of floating rafts and mooring buoys.
• Anchor points and underwater structures within the farming area.
• Deep areas near old shipwrecks, which act as underwater fish sanctuaries.

Modern technology, such as GPS and fish finders, makes it easier to locate submerged wrecks and target large fish populations, offering anglers exceptional opportunities for success.

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In conclusion, while choosing the right fishing spot is critical for successful sea fishing, it is not a fixed science. Different regions and conditions may require modifications to these methods. I hope this article provides valuable insights for fellow anglers to enhance their fishing experience.