
Castaway Bay
Best for families and waterpark-focused stays: daily indoor waterpark access is included with every registered room.
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Castaway Bay is a family-focused Sandusky resort built around a large indoor waterpark; this guide is for travelers planning active, kid-centered stays. South Beach Resort Hotel is a smaller Marblehead Lake Erie resort-style hotel with outdoor pools and a private beach; this guide helps travelers choosing a quieter lakeside stay.
Updated · about 23 mi (37 km) apart

Best for families and waterpark-focused stays: daily indoor waterpark access is included with every registered room.

Best for lakeside stays and outdoor-pool/beach access: private beach plus multiple outdoor pools and marina activities.
When Castaway Bay wins: If you want an active family trip with an indoor waterpark, arcade, bowling, kids’ club and many on-site activities that keep children entertained without leaving the property, pick Castaway Bay.
When South Beach Resort Hotel wins: If you prefer a smaller, quieter lakeside hotel with multiple outdoor pools, beachfront access and marina/activity options on Lake Erie, South Beach Resort Hotel is the better match.
Bottom line: Choose Castaway Bay for full-scale family entertainment centered on an indoor waterpark; choose South Beach Resort Hotel for a lower-key resort feel on Lake Erie with outdoor pools and beach access.
| Category | Castaway Bay | South Beach Resort Hotel |
|---|---|---|
| Overall vibe | Family-focused, high-energy waterpark resort with many indoor activities | Low- to mid-rise lakefront resort-style hotel with outdoor pools and private beach |
| Location | Sandusky, near Cedar Point and Sandusky Bay | Marblehead on Lake Erie with a private beach and marina access |
| Size (rooms) | 237 guestrooms and suites | 55 guestrooms |
| Who it’s for | Families with children and guests wanting an indoor waterpark | Couples, families and leisure travelers wanting a lakeside stay |
| Pools & water access | 38,000 sq ft indoor waterpark (included with rooms), plus outdoor pool and sun terrace | Three outdoor pools (seasonal) plus private beach and marina activities |
| Restaurants & bars | Multiple on-site options (Famous Dave’s, Mama Chetta’s Pizza, High Tide Café, Rocket’s Market, Sprinkle Shack, Surfside Beach Bar) | On-site dining options not fully published; room service available during limited hours |
| Spa & wellness | The Spa at Castaway Bay (massages, facials, mani/pedi, grotto and spa pool options) | Not published |
| Meetings & events | Large meeting and banquet facilities (multiple rooms, large ballroom) for events | Small conference center and one meeting room available |
| Notable extras | Free daily indoor waterpark passes included; 6,000-sq-ft arcade, bowling, mini golf, kids' club | Private beach, marina on site, boat tours and numerous outdoor water activities listed |
| Accessibility & family policy | All-ages property; primary guest must be 18 to check in | |
Castaway Bay sits in Sandusky near Cedar Point and Sandusky Bay—convenient if you plan Cedar Point or island-ferry excursions.
Best base for theme-park and island-ferry activity access in the Sandusky area.
South Beach Resort Hotel is on Marblehead’s lakeshore with a private beach and marina activities listed on its supplier profile.
Choose South Beach for a lakeside stay with direct beach and marina access.
Castaway Bay offers 237 rooms and suites including family-focused room types.
Bigger room inventory and family-room layouts make booking for larger groups easier.
South Beach Resort Hotel lists 55 guestrooms in several standard and deluxe configurations.
A smaller, simpler room set with some balcony options and standard resort amenities.
Castaway Bay publishes multiple on-site dining venues spanning quick service to a buffet and a BBQ restaurant.
Castaway Bay provides a broad family-oriented dining lineup so you rarely need to leave property.
South Beach Resort Hotel highlights room service (limited hours) and guest conveniences but doesn’t publish a full restaurant list in the supplier facts.
Expect basic on-site dining and some food service; contact the hotel for current restaurant options and hours.
Castaway Bay’s signature feature is a 38,000 sq. ft. indoor waterpark kept at about 82°F year-round.
If an indoor waterpark is the priority, Castaway Bay is clearly built around that offering.
South Beach Resort Hotel’s highlight is lakeside access plus several outdoor pools.
South Beach works well for outdoor-pool and beach days during the warm season.
Castaway Bay publishes a full spa and a 24-hour fitness center alongside family entertainment.
Spa services are available for adults, but the overall property leans family-friendly rather than nightlife-focused.
South Beach Resort Hotel lists fewer published spa details but does show some wellness/adult amenities.
South Beach offers basic wellness amenities; contact the hotel directly to confirm any full-service spa options.

Castaway Bay — included daily indoor waterpark passes, kids’ club, arcade, bowling and many family activities on site.

South Beach Resort Hotel — private beach, marina access and three outdoor pools for seasonal lake enjoyment.

Castaway Bay — indoor waterpark heated year-round so water activities aren’t dependent on the season.

South Beach Resort Hotel — lower room count and a more traditional lakeside resort setting with on-site marina services.
Castaway Bay — it’s designed around an indoor waterpark, toddler areas and a free children’s club.
No — South Beach’s outdoor pools are seasonal (the supplier listing gives a seasonal pool window); plan a lakeside visit in warm months.
Yes — every registered Castaway Bay room includes daily indoor waterpark passes; wristbands are required for entry.
Yes — the supplier listing shows the property is on a private beach and very close to Lake Erie.
Explore how Castaway Bay stacks up against other hotels nearby:
vs. sites like Expedia, Hotels.com and other OTAs ·