According to forum posts, solo travelers have several sightseeing options in Seattle. Popular areas include Pike Place Market, the Space Needle, Chihuly Glass Garden, and Olympic Sculpture Park. Travelers have also enjoyed solo trips to Mt. Rainier, utilizing services like Evergreen Adventures and Tours Northwest for guided tours.

Many users have reported feeling safe while exploring Seattle alone, both during the day and at night. The city is described as very walkable, with an efficient public transportation system including buses and light rail, which can enhance a solo traveler's experience without the need for a car.

For those interested in unique experiences, the Seattle City Pass offers access to multiple attractions, and ferry rides or float plane excursions provide scenic views of the surrounding areas. Solo travelers have also recommended the Seattle free walking tour and food tours at Pike Place Market.

Some travelers recommended various hotels in downtown Seattle due to their proximity to popular attractions like Pike Place Market and the Space Needle. The Mayflower Park Hotel and Hotel Andra were frequently mentioned for their central locations and quality services.

According to forum posts, the Grand Hyatt Seattle is highly regarded for its comfort and excellent location, making it suitable for short stays. Meanwhile, the Alexis and the Four Seasons offer a more luxurious experience with modern amenities and top-notch service, though pricing can be on the higher end.

Travelers have called out the State Hotel for its modern style and proximity to market areas, while the Sound Hotel has been praised for its modern decor and good location, having opened recently.

The Hotel Andra was specifically noted for its superb location and stylish rooms, although some guests mentioned that the air conditioning might not be adequate for everyone, as temperatures in the rooms can be on the warmer side.

According to forum posts, first-time visitors to Seattle should not miss the Space Needle, Pike Place Market, and the Chihuly Glass Garden. These landmarks are consistently recommended as top sights.

Travelers have highlighted the Olympic Sculpture Park and the Seattle Art Museum as key cultural attractions. For those interested in outdoor activities, taking a ferry ride or visiting local parks like Kerry Park for its famous city views is highly suggested.

Some users have recommended the Underground Tour in Pioneer Square for a unique historical perspective of the city. Additionally, the Pacific Science Center is a popular choice for families, offering interactive exhibits that engage both children and adults.

For a layover in Seattle, travelers have suggested exploring downtown Seattle, which is accessible via a 35-40 minute light rail ride from the airport. Popular activities include visiting Pike Place Market, a notable landmark where one can enjoy local arts, crafts, and food.

If the weather is unfavorable, some users recommended visiting the Museum of Flight, which is highly praised and comparable to the Smithsonian Air & Space Museum in Washington, D.C. It offers an extensive display of aviation history and is accessible by bus or taxi from downtown.

For those interested in scenic views, taking a ferry to Bainbridge Island offers stunning vistas of the city and Puget Sound. The ferry ride itself takes about 35 minutes each way and provides a refreshing escape from the city.

If the layover extends into the evening, the Smith Tower in Pioneer Square offers late-night views of the city skyline, and nearby restaurants provide a variety of dining options.

According to forum posts, Seattle offers a Light Rail service running north to south, which is straightforward to use due to its single line configuration. The cost is about $3 per adult. The Monorail provides a direct route from Westlake to the Space Needle.

Travelers have noted that the Metro bus system is extensive, covering the entire city. Specific bus routes, like Metro bus route 124, directly connect downtown Seattle to locations like the Museum of Flight.

There are also a couple of streetcar lines mentioned by users, including one running between Pioneer Square and Capitol Hill, and another from downtown to South Lake Union. For broader regional travel, services like Sound Transit and Community Transit are available, though they may be confusing due to their multiple operators.

Many travelers recommend using an Orca card, which can be used across various transit modes including the light rail, monorail, buses, and even the water taxi. Real-time route planning can effectively be managed through Google Maps, ensuring ease of navigation around the city.

According to forum posts, several restaurants along Seattle's waterfront offer scenic views and diverse menus. Some prominent options include Elliott's, Anthony's, and Ivar's, which are known for their seafood offerings. Cutters Crabhouse, located at the north end of Pike Place Market, also provides a variety of options with a scenic view.

For those seeking a unique dining experience, Six Seven at the Edgewater Hotel offers a restaurant with spectacular views and a variety of non-seafood items. Another option is Ray's Boathouse in Ballard, which is a long-time favorite among locals for its full-service seafood and great atmosphere.

According to forum posts, the Pacific Science Center, Woodland Park Zoo, and the Seattle Aquarium are popular destinations that engage families with children. Another engaging sight is the Museum of Flight, highly recommended for its interactive exhibits that cater to both children and parents.

For outdoor lovers, travelers have suggested visiting Ballard Locks where families can watch boats and see underwater fish ladders. Additionally, Pike Place Market offers a vibrant atmosphere where children can enjoy the famous gum wall and explore various stalls, making it an excellent venue for a family day out.

Some users mentioned the Seattle Center as a fantastic area for children, featuring attractions like the Chihuly Garden and the interactive Children's Museum. This area provides a mix of educational and entertaining activities suitable for all ages.

For a more relaxed day, suggestions from travelers include beachfront areas like Alki Beach and various city parks such as Discovery Park, which offers trails and scenic views ideal for family picnics and casual hikes.

According to forum posts, Downtown Seattle is highly recommended for travelers without a car, as it is central and most key attractions are within walking distance or a short transit ride. The Belltown area, particularly on 5th Avenue, offers hotels like Hotel 5 and Kings Inn with proximity to attractions and restaurants. The Warwick, Hotel Andra, and the Sound Hotel on 4th Avenue between Blanchard and Lenora are also favored for their location and amenities, although they are pricier.

Travelers have noted that during the peak season from June to September, hotel prices in these areas can be steep. Expect to pay around $200 or more for a family of three or more, and $170 or more for a couple in the Belltown area. Hotels with higher star ratings can charge close to double these rates.

Some travelers also suggest Capitol Hill for its vibrant street life and accessibility, offering a mix of bookstores, clubs, and restaurants. This area can be reached using public transportation, making it a practical choice for those who prefer not to rent a car.