Try scuba for the first time off Costa Rica’s Catalina Islands with an SSI mini course. Two guided dives, professional instructors, and abundant reef life make this a high-value half-day ocean adventure from Tamarindo.
More ways to explore the area's outdoor wonders
A low-roofed dive boat slips away from the Tamarindo shoreline and the Pacific opens like an invitation. Salt spray stings, gulls wheel, and within 30–40 minutes the Catalina Islands rise as dark rock outcrops, waves running around them. The instructor checks your gear while the current tugs at the bow—below, reef tops and patches of bright coral wait.
Difficulty
moderate
Duration
5 hours
Fitness Level
Moderate fitness—able to swim and perform basic physical tasks; expect short surface swims and ladder climbs.
Wildlife
History
Guanacaste’s coastal communities have long relied on fishing; the Catalinas have been traditional fishing grounds that shifted to dive tourism as reefs gained attention.
Conservation
Operators typically enforce no-touch rules and promote reef-safe sunscreen; avoid anchoring on reefs and follow instructor guidance to reduce impact.
Reserve your spot on the Discover Scuba Diving SSI Mini Course Tamarindo today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Hydrate and eat light
Bring water and a light snack before the boat—being hydrated reduces the risk of seasickness and improves comfort during surface intervals.
Bring a reef-safe sunscreen
Apply biodegradable sunscreen before the boat to protect coral and marine life; reapply only where permitted between dives.
Pack motion-sickness meds if prone
Take medication the night before or an hour before departure if you get seasick—the crossing can be choppy on windy days.
Practice equalization and buoyancy
Review ear-clearing techniques and follow instructor buoyancy tips during the surface session to avoid rapid ascents or ear discomfort.
Mask and snorkel
Personal fit masks improve comfort and clear underwater vision during skills and surface swims.
Shorty or 3mm wetsuit
Provides thermal protection and minor abrasion protection on cooler days or longer dives.
Reef-safe sunscreen
Protects skin while minimizing harm to coral and marine organisms.
summer
Small dry bag and towel
Keeps phone, keys, and a change of clothes dry on the boat and back on shore.