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Rating depth structure for largemouth bass.
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358-acre reservoir near Juana Díaz. A south-coast irrigation reservoir (1913) on the Río Jacaguas near Juana Díaz, with largemouth and peacock bass over tilapia, catfish and sunfish. The lake tops out around 41 ft. The depth chart comes from U.S. Geological Survey bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Species by species, here's what the data says the year looks like.
Traced from the shoreline, Lago Guayabal runs 276 acres with 6 miles of edge. An index of 2.6 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. The shallow band under 15 ft claims about 61% of the surface — that's where the groceries are. Tip to tip the water measures near 1 mi with a 0.8-mi widest point. You'll find it in Juana Díaz County. The nearest mapped water is Lago Toa Vaca, 2 mi to the east.
Spring puts largemouth bass in skinny water — 2 to 10 ft is the zone. Warm water sends them out to 8 to 20 ft; cold water stacks them in 15 to 35 ft. Shallow bay flat is the standout, a weed flat at roughly 4 ft, rated prime for spring largemouth bass. Plan around early morning and the evening in the warm months. A texas-rigged 10" worm or a deep-diving crankbait covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (4 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Back-bay flat (19 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (3 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Deep basin (40 ft) | Blade bait, Jigging spoon |
Spring puts peacock bass (tucunaré) in skinny water — 2 to 12 ft is the zone. As the season builds they drop to 3 to 15 ft, wintering in 6 to 22 ft. Spring peacock bass (tucunaré) concentrate at Main-lake point, a prime-rated point around 3 ft. Warm-month bites cluster around midday and early morning. A topwater (walking bait) or a jerkbait covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 12 ft | midday & dawn | Main-lake point (3 ft) | Topwater prop bait, Jerkbait (fire tiger) |
| Summer | 3 to 15 ft | midday & dawn | Main-lake point (3 ft) | Topwater (walking bait), Jerkbait |
| Fall | 3 to 15 ft | midday & dawn | Main-lake point (3 ft) | Jerkbait, Swimbait |
| Winter | 6 to 22 ft | midday | Break off the point (2 ft) | Slow jerkbait, Jig |
In spring, tilapia run shallow here, mostly 1 to 6 ft. Midsummer fish sit out in 2 to 10 ft before dropping to 5 to 18 ft for winter. Spring tilapia concentrate at Shallow bay flat, a prime-rated weed flat around 4 ft. Fish it in midday and early morning and you'll meet the bite. You won't need more than a micro-jig near weed edges most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | Shallow bay flat (4 ft) | Tiny jig + bread-ball tip, Small worm under float |
| Summer | 2 to 10 ft | midday & dawn | Shallow bay flat (4 ft) | Micro-jig near weed edges |
| Fall | 3 to 12 ft | midday | Shallow bay flat (4 ft) | Small jig tipped with worm |
| Winter | 5 to 18 ft | midday | Break off the point (2 ft) | Slow micro-jig, warm outflows |
Spring puts channel catfish in skinny water — 3 to 12 ft is the zone. Warm water sends them out to 8 to 25 ft; cold water stacks them in 20 to 40 ft. Deep basin is the standout, a deep basin at roughly 40 ft, rated prime for winter channel catfish. Plan around after dark and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Shallow bay flat (4 ft) | |
| Summer | 8 to 25 ft | night & dusk | open water | |
| Fall | 10 to 30 ft | dusk | Deep basin (40 ft) | |
| Winter | 20 to 40 ft | midday | Deep basin (40 ft) |
Start shallow in spring: bluegill sit in 1 to 6 ft that time of year. Warm water sends them out to 4 to 15 ft; cold water stacks them in 10 to 25 ft. Top water on the chart: Shallow bay flat, a weed flat in the 4 ft range, prime in spring. Fish it in early morning and the evening and you'll meet the bite. Throw a small sponge spider (fly) or a micro tube jig until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | Shallow bay flat (4 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Shallow bay flat (4 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Back-bay flat (19 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Back-bay flat (19 ft) | Tiny spoon |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 40 ft.
Season dates, license requirements, and size and bag limits for Puerto Rico waters are set by the Puerto Rico DRNA — and special regulations can apply to Lago Guayabal specifically, so confirm the current rules before you fish.
Check the official Puerto Rico fishing regulations →
Lago Guayabal is about 41 ft (12 m) deep at its deepest point. The depth chart comes from U.S. Geological Survey bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target largemouth bass, peacock bass (tucunaré), tilapia, channel catfish, bluegill on Lago Guayabal.
Shallow bay flat is the top-rated area: a weed flat in about 4 ft of water that rates prime for largemouth bass in spring. Every other rated spot, per species and season, is on the map above.
For largemouth bass, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Lago Guayabal is regulated by the Puerto Rico DRNA. Check the official Puerto Rico regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Lago Toa Vaca 2 mi · Lago Cerrillos 5 mi · Lago de Matrullas 8 mi · Caleta de Cabullones 11 mi · Bahía de Ponce 12 mi · Bahía de Rincón 15 mi · Lago Caonillas 15 mi · Bahía Tallaboa 17 mi · Lago Dos Bocas 19 mi · Bahía de Guayanilla 19 mi · Bahía de Jobos 22 mi · Lago La Plata 24 mi
See how Lago Guayabal stacks up: best largemouth bass lakes in Puerto Rico · best peacock bass (tucunaré) lakes in Puerto Rico · best tilapia lakes in Puerto Rico · best bluegill lakes in Puerto Rico
Browse all Puerto Rico fishing maps or see every water on DepthScout. Bathymetry credit: U.S. Geological Survey. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.