The short version
Inshore fishing happens in shallow, protected water close to land, such as bays, estuaries, flats, and marshes. Deep sea fishing, also called offshore fishing, takes place farther out in open, deeper water. Inshore trips tend to be shorter, calmer, and cheaper, while offshore trips tend to be longer, rougher, and focused on larger fish. If you are new to the sport, our saltwater fishing basics guide gives the wider picture.
Where each takes place
The dividing line is not official, and it varies by region and by charter company. As a rough guide, inshore covers bays, river mouths, flats, mangroves, and shallow coastal water, often within sight of land. Offshore covers open water well beyond the coast, where depths increase and fish follow ocean currents, temperature breaks, and structure.
Many people also use “nearshore” for the middle ground, such as reefs, wrecks, and the water just outside the inlets. What are the key differences between nearshore and offshore fishing? Nearshore usually means a shorter run in a smaller boat, while offshore means a longer run, deeper water, and more preparation. Check the definition your captain or charter uses.
Target species
- Inshore: species such as redfish, snook, speckled trout, flounder, sheepshead, and tarpon, depending on region.
- Nearshore: species such as king mackerel, cobia, and snapper around reefs and wrecks, depending on region.
- Deep sea: larger pelagic and deep-water species such as tuna, mahi-mahi, wahoo, sailfish, marlin, and deep-water grouper and snapper, depending on region and season.
What you can catch depends on where you live, the season, and local regulations, so ask a local guide.
Boats and gear
Inshore anglers use skiffs, flats boats, bay boats, kayaks, or even docks and shore. Tackle is usually light to medium spinning or baitcasting gear with frequent casting. See our guide to choosing a saltwater reel for sizing.
Offshore trips use larger, more seaworthy boats with strong engines, navigation and safety gear, and often fishfinders and outriggers. Tackle is heavier, with conventional reels, strong rods, and heavier line, though charters usually provide it.
What size boat can go offshore? There is no single answer. Capability depends on hull design, engine reliability, safety equipment, sea state, and the captain’s experience, not length alone. Many offshore charters use larger boats, but smaller boats do fish offshore in good weather close to port. Always check marine forecasts, follow local rules, and have required safety gear and a float plan. If you are unsure, go with a licensed captain.
Line for inshore fishing
What is the best line for inshore fishing? There is no universal best. Many anglers use braided main line for sensitivity and casting distance, joined to a fluorocarbon or monofilament leader for abrasion resistance and lower visibility (see how to make saltwater leaders). Monofilament alone is also popular, especially for beginners. Choose the strength based on target species and structure, and follow local guidance.
Trip length, cost, and comfort
Inshore charters are often half-day trips (see what to wear for deep sea fishing for packing) and tend to be easier on beginners, kids, and anyone prone to seasickness. Offshore trips are commonly longer, sometimes a full day or more, with bigger swells, more time on the water, and generally higher cost. Weather can cancel or shorten offshore trips more often. Ask what is included, such as bait, tackle, licenses, and fish cleaning, and how the captain handles cancellations.
If seasickness is a concern, talk to a pharmacist or doctor about options in advance, eat lightly, and stay in fresh air near the middle of the boat.
Which should you choose
Choose inshore if you want to learn, fish with children, keep costs down, or enjoy active casting. Choose offshore if you want to target large open-water fish and are comfortable with a long day and rougher water.
Is deep sea fishing worth it? For many anglers, yes, if the goal is big fish and a full-day adventure and they accept the higher cost and some uncertainty. For a first trip, inshore or nearshore is usually a gentler way to find out whether you enjoy saltwater fishing. If you cannot book a boat, you can also try fishing from the shore.
FAQ
Is inshore fishing easier than offshore? Usually it is easier to learn and more comfortable, though skill still matters.
Can I do both on one trip? Some charters offer combination or nearshore trips. Ask the captain.
Do I need my own gear for a charter? Often not. Many charters supply rods, reels, and bait, but confirm before you book.