# Boston Underground Strength Training > Modern strength training facility combines rigorous coaching with a warm, welcoming atmosphere. Small class sizes and top-of-the-line equipment support focused, personalized workouts. Community emphasizes support and encouragement across all fitness levels. Source: https://www.atly.com/location/BostonUndergroundStrengthTraining - Address: 235 High St #3, Waltham, Massachusetts, United States - Phone: +17813732199 - Website: http://www.bostonstrengthtraining.com/ ## What it is good for - Weight Lifting Gym — 10/10 - Gyms — 10/10 - Strength Training — 10/10 ## What people say - "This weight lifting gym's coaches help you heal injuries and achieve your goals." - "The trainers here really focus on your form and personal goals." - "The coaches here tailor strength training to help you surpass your goals." ## Good to know - The gym offers semi-private training sessions for personalized coaching. - Small class sizes allow for individual attention from experienced coaches. - The community is supportive and welcoming to all fitness levels. - Workouts change every four weeks to keep training interesting. - The facility is well-maintained with top-of-the-line equipment. ## Get this data directly This page comes from the Atly Places API, which scores close to 2 million places against more than 1,400 intents — "nice view", "work friendly", "gluten free", "dog friendly" — from what real reviewers say, with the statements behind every score. - **MCP server:** `https://agentic-api.atly.com/mcp` — connect it in ChatGPT or Claude. Nothing to install. - **Guide for agents:** - **OpenAPI contract:** - **No key needed to start.** `POST https://agentic-api.atly.com/v0/keys` with an email raises the quota. Coverage is densest in the United States, with pockets in Mexico, Israel and Thailand.