Underwater Spotter® California Ocean Life Guide

Find · Learn · Identify

The Underwater Spotter California Ocean Life Guide highlights the 50 most common and interesting ocean animals found in California waters. Designed for divers and snorkelers, this guide makes fish identification simple, visual, and genuinely fun—no scientific jargon required.

Instead of overwhelming you with hundreds of species, Underwater Spotter focuses on just 50, helping you build confidence and recognition dive by dive.

Unlike Any Other Fish Guide

We wanted a fish identification guide that didn’t feel like homework.

Underwater Spotter Guides are:

• visually clean and easy to use

• packed with fascinating (and sometimes bizarre) fish behavior

• designed for real underwater observation, not memorization

Whether you’re diving, snorkeling, or flipping through between dives, this guide helps you see more by knowing more.

How It Works

🔍 FIND

Challenge yourself to find all 50 ocean animals in the guide.
Each species includes a checkbox so you can track your progress and turn every dive into a purpose-driven search.

🧠 LEARN

Skip the scientific names and focus on what matters.
Each entry highlights:

• fun fish facts

• unique behaviors

• when and where you’re most likely to spot them

The result: better observation and deeper appreciation of marine life.

🐠 IDENTIFY

Learn to recognize entire fish families, not just individual species.

Each family includes:

• 3 obvious visual traits for quick recognition

• 3 simple distinctions to tell commonly confused fish apart

This makes identification faster, easier, and more intuitive underwater.

What’s Inside the Guide

• Top 50 California ocean animals

• Fish, sharks, nudibranchs, starfish, sponges, clams, rays, turtles, and more

• Interactive progress tracking

• Clear visuals and comparison tools

• Behavior-based insights for each species

Who This Guide Is For

Casual Divers

For divers who want to recognize what they’re seeing—without diving into technical manuals.

Beginner Divers

A confidence-building tool that simplifies fish identification and avoids overwhelm.

Ocean Animal Lovers

For anyone who loves asking “Why is that fish doing that?” and wants real answers.

Also great for snorkelers and marine life enthusiasts.

Specs

• Weight: 5.5 oz

• Dimensions: 8.5 × 5.75 × 0.5 in

• Format: Durable, dive-friendly guide

Why We Love It

This guide pairs perfectly with:

• Fish Identification specialty courses

• Catalina Island and SoCal diving

• Divers who want to feel more connected to the ocean

It turns every dive into a discovery.

Stream2Sea Coral Care SPF 30

Protect your skin while caring for the reefs you dive to see.

Stream2Sea Coral Care SPF 30 is a broad-spectrum mineral sunscreen designed for divers, snorkelers, beachgoers, and anyone who wants serious sun protection with the marine environment in mind.

Made with non-nano mineral protection and an organic antioxidant blend of green tea, wakame seaweed, tulsi, and olive leaf, Coral Care helps protect and nourish sun-exposed skin. Even better, the formula has been independently tested for its effects on coral, with testing showing a positive effect on coral growth compared with the control treatment.

Whether you're spending a surface interval on the boat, snorkeling a shallow reef, or enjoying a full day at the beach, Coral Care gives you water-resistant protection made for life around the ocean.

Why Divers Love It

• Broad Spectrum SPF 30 UVA & UVB protection

• Water Resistant for 80 Minutes

• Non-Nano Mineral Sunscreen with 8.8% titanium dioxide

• Reef Safer™ Formula designed with aquatic life in mind

• Tested for Coral Impact

• EWG Verified™

• 100% USDA Biobased

• Fragrance Free

• Cruelty Free

• Organic antioxidant blend with green tea, wakame, tulsi & olive leaf

• No oxybenzone, octinoxate, or octocrylene

• No parabens, phthalates, or synthetic fragrance

• Recyclable packaging

Made for the Water

Coral Care isn't just another sunscreen labeled “reef safe.” Stream2Sea develops and tests its products specifically with aquatic environments in mind. Coral Care goes a step further with ingredients and minerals selected to support coral health.

It's a natural fit for scuba diving, snorkeling, freediving, boating, and tropical travel — because protecting yourself from the sun shouldn't mean forgetting about what's below the surface.

How to Use

Apply liberally and evenly to clean, dry skin 15 minutes before sun exposure. Reapply at least every 2 hours and after swimming, sweating, or towel drying.

Size: 3 fl. oz. / 90 mL

The new Definition Top delivers a boost of warmth in the core torso area where you need it most. It is made with quality 1mm X-Foam neoprene with an outside super-stretch nylon lining and an inside mix of plush on the front and back of the torso and super-stretch nylon on all other panels. Thumb loops plus an additional loop at the hem prevent ride-up when wearing beneath a wetsuit. Ideal for pool training or as a base layer beneath a wetsuit or a semi-dry when diving or snorkeling.

Reliable Warmth, Protection & Comfort for Cold-Water Diving

The Scubapro Delta 5mm Dive Boot is a lightweight yet durable boot built for divers who regularly encounter cold water, rocky shore entries, and rugged dive environments. With a sturdy but flexible outsole, reinforced protection, and improved fit, the Delta remains one of the most trusted boots for both recreational and technical divers.

This updated version features a revised ankle diameter and contoured top, allowing the YKK zipper to slide smoothly while making the boot easier to put on and remove—without sacrificing a secure, comfortable fit.

Why We Like the Delta 5mm

Comfortable, Cramp-Free Fit
The full-cut design with built-in arch support provides long-lasting comfort, even for divers with wider feet.

Improved Fit & Easier Entry
A revised ankle shape and contoured upper help the YKK zipper glide smoothly, making donning and doffing quicker and easier.

Protection Where It Matters
Reinforced toe, heel, and rubberized armor protect your feet from fin pockets, rocks, and rough shore entries.

Secure Fin Placement
The molded heel cap includes a fin strap keeper to prevent straps from slipping during dives.

Boat-Friendly Traction
A high-quality non-marking anti-slip sole provides excellent grip without damaging boat decks.

Eco-Conscious Materials
Made with X-Foam limestone neoprene, which is petroleum-free and compliant with PAH and REACH safety standards.

Features

• 5mm N2S neoprene construction for warmth and durability

• Reinforced toe and heel caps extend the life of the boot

• Heavy-duty textured rubber outsole protects against sharp or rocky terrain

• YKK zipper with gusset reduces water seepage

• Hook-and-loop zipper keeper locks the zipper in place

• Rubberized armor adds protection on top and bottom of the boot

• Built-in arch support improves comfort on long dive days

Ideal For

• Cold and temperate water diving

• Rocky shore entries and exits

• Boat diving with open-heel fins

• Divers who want comfort, durability, and reliable traction

Specs

Boot Type: Dive Boot
Thickness: 5mm
Material: X-Foam Neoprene
Closure: Zipper

Sole Features:

• Non-marking anti-slip sole

• Reinforced toe and heel

• Built-in arch support

• Fin strap keeper

• Gusseted zipper

Weight: 1.25 lb

Activity: Recreational, Technical

Blue Holic Tip 🌊

If you regularly dive Catalina, the Channel Islands, or local SoCal shore sites, the Delta boot is one of the most comfortable options for long walks over rocks and boat ladders.

XS Scuba Folding Slate

The XS Scuba Folding Slate is a compact, lightweight tool designed for clear underwater communication, navigation notes, and skill practice. Its folding design provides extra writing space when open, while staying streamlined and easy to carry when closed.

Perfect for training dives, specialty courses, and everyday recreational diving, this slate is a reliable essential for any diver who wants to stay organized underwater.

Why We Like It

• Folding design
  Opens flat to provide more writing space while remaining compact when closed.

• Secure attachment
  Includes a sturdy clip to keep the slate safely attached during dives.

• Adjustable lead pencil
  Unique pencil design allows for consistent, clear writing underwater.

• Lightweight and practical
  Easy to use without adding bulk or drag.

Ideal For

• Underwater communication

• Navigation and mapping exercises

• Specialty and training dives

• Note-taking during classes and skill practice

Specs

• Dimensions (Closed): 5.75” × 7.5” (14.6 × 19 cm)

• Dimensions (Open): 10.75” × 7.5” (27.3 × 19 cm)

• Design: Folding slate

• Includes: Adjustable lead pencil and attachment clip

SEAC Double Flopper Speargun Tip – Stainless Steel, M7 Thread

Upgrade your speargun with the SEAC Double Flopper Speargun Tip, designed to deliver reliable penetration and secure fish retention. Its sharp point helps achieve clean, effective shots, while the two opposing stainless-steel floppers open after penetration to provide strong holding power and reduce the chance of your catch pulling free.

Built for demanding saltwater use, this durable replacement speartip features a streamlined profile that minimizes drag through the water. The threaded design makes it easy to install, replace, remove, and sharpen when needed.

Key Features

• Double-flopper design provides secure, two-sided holding power
• Sharp penetrating point for clean and effective shots
• Stainless-steel construction for strength and corrosion resistance
• Streamlined profile helps maintain speed and accuracy underwater
• M7 threaded connection for compatible speargun shafts
• Ideal as a replacement tip or spare for your spearfishing equipment
• Manufactured by SEAC, a trusted name in diving and spearfishing gear

Compatibility

Designed for compatible M7 threaded speargun shafts and commonly listed for 6 mm applications. Check your shaft’s thread size before ordering to ensure proper fit.

Whether replacing a worn or damaged tip or preparing a dependable backup for your next dive, the SEAC Double Flopper Speargun Tip offers the durability, penetration, and holding power serious spearfishers need.

• Good looks and good comfort

• Two material, liquid silicone injection

• Includes traditional mouthpiece tie

• FDA approved material

• Individual clamshell packaging

• Available in five color combinations