Costa del Sol is a coastal resort area in the department of La Paz, extending along a long sandbar between the Pacific Ocean and the estuary system of the Jaltepeque River. Its landscape combines broad sandy beaches, coastal vegetation, tidal channels, mangroves, and calm waterways, creating a setting that differs from El Salvador's more rugged volcanic coastline. The area is known for beach houses, hotels, restaurants, and marinas, while fishing remains an important local activity. Its location near the mouth of the Lempa River also places Costa del Sol within one of the country's important coastal wetland regions.

Life in Costa del Sol is closely connected to fishing, tourism, and the waterways of the Jaltepeque estuary. Local fishing communities use small boats to work the Pacific waters, rivers, and mangrove channels, while tourism businesses provide accommodation, food, boat trips, and water-based activities. The nearby communities of La Herradura and San Luis La Herradura form part of the wider coastal area and retain strong fishing traditions. Seafood, boats, and waterfront activity are therefore common features of daily life, alongside the recreational businesses that have developed along the beach.

The long beach is the area's main attraction, with the Pacific surf on one side and the sheltered waters of the Jaltepeque estuary on the other. Boat excursions travel through mangrove channels where visitors can observe herons, egrets, pelicans, and other coastal birds. The estuary also provides nursery habitat for fish and other aquatic species. Nearby Isla Tasajera and the coastal wetlands offer additional opportunities for exploring the area's waterways. Swimming, boating, fishing, kayaking, and birdwatching are common activities, while the broad beach provides space for walking and observing the changing Pacific tides.

Seafood is central to Costa del Sol's cuisine, with fish, shrimp, crab, oysters, and other locally caught products featured in restaurants along the coast. Ceviche, fried or grilled fish, and rice-based seafood dishes are common choices, while traditional Salvadoran foods such as pupusas and yuca are also available. A distinctive feature of Costa del Sol is its narrow coastal geography: a visitor can move from Pacific beach to mangrove-lined estuary within a short distance. The combination of fishing communities, sandy shoreline, tidal waterways, and coastal wetlands gives the area a strong maritime character within El Salvador's Pacific lowlands.